I bought a home trimmer on 2012-11-21. Of course, the next logical question is “how much money does this save me?”
To answer this question I turned to my mint.com data. I searched all transactions for “Supercuts” (it turns out I’ve been amazingly loyal over the past three years). That gave me a list of 29 haircuts with dates and prices.
I saved the transactions as csv and loaded them into a spreadsheet.