I think I may be the ultimate nerd here. I was an electrical engineer during my career, but you do a lot of things over time and one I did for 20 years or so was coding databases for quality and productivity control stuff, graphics, databases, etc... When I retired, I dove into COH like I couldn't while working, although I played on live since beta until shutdown. I'm also an altaholic and hated not remembering all my toons from live so I made a spreadsheet which grew over the past few years of playing until now it has about 13 tabs, 20 summary graphs, full data and breakdowns on pareto of powers, offline days, number of badges, fun ratings (my own thing), origins, SGs, ATs, ... well, you get the idea. Someone above said that if they needed aa spreadsheet to remember everything then they weren't having fun. Truthfully, I do like keeping track of my many alts. I write bios for every one, and role play them as I play. And when I logoff a toon I update their sheet. That's what makes this the greatest game in the world for me. You can play it however you want.
Only thing about my spreadsheet is it has gotten so massive it's a pain to add new columns without messing up all the many interlocked calculations so I'm thinking of changing it to a relational database. Anyone have a good one for example? I haven't coded dbs in 20 years so going to have to do some brushing up for sure.