@dodecahedron Lol yeah that's a big reason I try to use folders more now. Let me tell you though, it's stupid anoying when I extract soething and it gives me a folder of like, 60,000 or more files that I have to portion out nicely.
In this particular case though, that wasn't the issue. This time I'm just renaming call recordings. If I recorded a call with you in 2013, I would have saved it as, alexander1.1, and alexander1.2. The first number is the call recording number so I can keep them in chronological order, the second number is which file it is (since I like recording each thing to a separate file when possible). I wanted to put the date in, but was too lazy back then to check the date and write it in.
In 2018, I stopped being quite so lazy and started naming them like this: alexander1 mar 16 2013a, and alexander1 mar 16 2013b. In other words, I started putting the date in the file name, and using letters at the end. A is always my side. If there's no letter, then it's a conference call, where everything is in one file.
Probably the hardest part of renaming the old files is putting the dates in. Fortunately most of them have a correct date for last modified, so I can go by that. I feel a lot safer having the date in the name, though.