The Day the Ledger Didn't Balance
I was sitting in my home office back in mid-January—January 12th, to be exact—staring at a cell in my spreadsheet that I couldn't fill. It was the 'Dinner from Previous Night' column. I had the protein, I had the vegetable, but for the life of me, I couldn't remember the starch. Was it roasted potatoes? Rice pilaf? The data was missing, and in my world, a missing entry is a red flag for a systemic failure. My wife walked in, saw me staring blankly at the screen, and asked if I was doing the taxes early. I told her I was auditing my own head, and frankly, the books were looking pretty cooked.
Before we get into the cold, hard numbers, I need to be clear about something. This site uses affiliate links. If you buy something through these links, I earn a commission at no extra cost to you. I only recommend brain supplements and programs I have personally tested and tracked in my own spreadsheet—because if it isn't in the rows and columns, it doesn't exist to me. Also, let’s be real: I am a retired accountant, not a neuroscientist. I have zero medical training. I spent 30 years balancing accounts for construction firms, not studying synapses. Check with a professional before you start any new regimen, because what worked for my 'accountant brain' might not be the right entry for yours.
After that 'starch incident' in January, I decided to run a full 90-day fiscal quarter of my cognitive health. I’ve written before about my cognitive audit when I first started noticing the slips, but this was different. This was a controlled study of one. I wanted to see if I could actually move the needle on my subjective memory scores without spending a fortune or turning my kitchen into a laboratory.
The Methodology: More Tabs than a Tax Return
My wife jokes that my tracking spreadsheet has more tabs than our joint tax returns ever did, and she’s not wrong. For this 90-day audit, which ran from January 11th to yesterday, April 10th, 2026, I tracked five key variables every morning at 7:30 AM: hours of sleep, caffeine intake (in ounces), a subjective 'Clarity Score' (1-10), the 'Keys Test' (seconds to locate my car keys), and my daily supplement cost.
I started the quarter with a baseline that was, frankly, depressing. My average Clarity Score for the first week of January was a dismal 3.4 out of 10. I was experiencing what I call 'cognitive depreciation'—the feeling that my mental assets were losing value faster than a new car driven off the lot. I needed a new input to balance the sheet.
I’d previously looked at my first 30 days testing brain supplements, but I wanted something more sustainable. I started looking into The Brain Song. At $54, it represented a manageable monthly expense—roughly the cost of a decent lunch in suburban Dallas—and the 'audio-based' approach intrigued me. It wasn't another pill to swallow; it was more like an adjustment to the background frequency of my workday.
The First 30 Days: High Volatility
The first month of the audit (January 11 to February 10) was characterized by high volatility. My Clarity Scores swung from a 3.1 to a 5.5. I was integrating the new routine, and like any new software rollout, there were bugs. I wasn't seeing the immediate ROI I wanted. My 'Keys Test' was still averaging 45 seconds of frantic searching every morning.
However, by Day 22, I noticed a subtle shift. I wasn't just remembering where my keys were; I was remembering *why* I had put them there. It’s the difference between seeing a transaction on a statement and actually remembering the purchase. I kept the $54 investment in the 'Assets' column and pushed forward. I even wrote about how the spreadsheet proved my brain wasn't actually broken during this phase, which kept me from hitting the 'delete' key on the whole experiment.
The Second Quarter: Reconciling the Gains
By mid-February, the numbers started to stabilize. This is where the 'compounding interest' of brain health usually kicks in, or so I hoped. My average Clarity Score for February climbed to 5.8. Not a landslide victory, but in accounting, a 2.4-point increase in a primary KPI is cause for a celebratory cup of decaf.
I noticed that when I used The Brain Song consistently in the mornings, my 'afternoon slump'—that period around 2:30 PM when my brain usually starts looking for an early retirement—was less pronounced. I wasn't reaching for a third cup of coffee, which reduced my 'Caffeine Intake' variable and, surprisingly, improved my sleep quality. It was a positive feedback loop, a rare find in any ledger.
I did briefly look at an alternative called The Genius Song, which is priced similarly at $53, but I decided to stick with my current protocol for the full 90 days to ensure the data remained 'clean.' Switching variables mid-audit is a cardinal sin in my book. You can't change your depreciation method halfway through the fiscal year without an asterisk the size of Texas.
The Final 30 Days: The Dividend
March 11th to April 10th was the 'dividend' phase. This is when the numbers really started to talk. My Clarity Score hit a 90-day high of 7.9 on April 4th. I haven't seen a 7.9 since I was probably 48 and still believed I could retire at 50.
My 'Keys Test' dropped from a 45-second average in January to a crisp 12-second average in April. That’s a 73% improvement in retrieval time. If I could get that kind of performance out of my old 401(k), I’d be writing this from a yacht in the Caribbean instead of a home office in Dallas.
The Raw Data: A 90-Day Summary
- Total Duration: 90 Days (Jan 11 - April 10, 2026)
- Total Entries: 450 (5 data points per day)
- Starting Clarity Score: 3.4 / 10
- Ending Clarity Score: 7.9 / 10
- Total Investment: $162 ($54 per month)
- Cost per 'Point' of Improvement: $36.00
When you look at it as a cost-benefit analysis, the ROI is undeniable. For $36 per point of mental clarity, I’ve managed to stop the 'cognitive leak' that was making me feel like an obsolete piece of hardware. I’m no longer the guy forgetting the starch at dinner or the client’s name mid-sentence. Well, mostly. I’m still 55, not 25, but the ledger is finally back in the black.
Final Audit Notes
If you’re feeling like your own mental books aren't quite balancing, I can’t recommend the 'audit approach' enough. Don't just take a supplement and hope for the best—track it. See if the $54 you're spending on something like The Brain Song is actually yielding a dividend. If the numbers don't move after 60 days, cut your losses and find a new vendor. That’s just good business.
I’m going to keep tracking, of course. My wife says I’ll probably have a spreadsheet for my own funeral arrangements eventually, but until then, I’ll take the 7.9 Clarity Score and the 12-second key retrieval. It’s a solid return on investment in a world where those are getting harder to find. If you want to see the tool that's currently top of my 'Assets' column, you can check out The Brain Song here and see if it helps balance your own accounts.