I'm not very good at... all those tax rules and regulations, but I really have been burned by transaction records: reconciling at the end of the year, my brain just crashes. Now I have one principle: spend an extra 5 minutes now, and save 5 strands of hair at the end of the year. Every time I cross chains / swap coins / claim airdrops, I immediately put the tx hash, time, chain, notes ("why I did this") into the same table, and take a screenshot for a copy—anyway, hard drives don't mind being full. Wallets shouldn't be too scattered; one purpose per address, or you'll be the one explaining whether it's an investment or just testing on a testnet. Recently, I've been talking about rate cut expectations, the US dollar index moving up and down with risk assets—basically, high volatility means more trades, so you need to keep records clean... otherwise, when it comes to filing taxes, you'll realize what "on-chain is transparent, but reality is messy." That's it for now, I'll tidy up my little scripts and share them later.