> If I notice stocks have gone down a lot recently, I'll hop into Vanguard, and swap anything that is underwater with another similar, but not identical fund.
How much effort do you have to put in to avoiding wash sales?
It’s pretty forgiving. For example, an S&P500 ETF and a “Total Stock Market ETF” are considered different even though they are 99% correlated. There are lots of indexes from different companies that track the same thing and I wouldn’t be surprised if 2 ETFs that track 2 different “Total Stock Market” indexes also work (99.9% correlation?)