Lately, I've been filling in my transaction records, and the more I do, the more I feel that not going crazy at the end of the year all depends on not being lazy with my daily habits... My current method is pretty crude: every time I deposit/withdraw/transfer on-chain, I take a screenshot, export a statement from the exchange, and jot down the txhash, time, address, notes (what it's for) into a spreadsheet. Otherwise, when I see a bunch of "internal transfer" entries later, I can't remember what they were. Seeing people interpret large on-chain transfers and exchange hot/cold wallet movements as "smart money" also makes me curious enough to check, but honestly, when it comes to reporting, you need to prove where that money came from and where it went, which is way more important than guessing what they bought. Forget it, to put it plainly: if you can keep evidence, do it. Don't wait until the end of the year staring at a string of hashes in silence.