Yesterday was my wedding anniversary. DH had to work, and he ended up meeting me at Goodwill after he got off, where I was with friends. Most of our anniversaries have been really low key. So, I got to wondering about everyone else.
First off, happy anniversary!

While I don't want to make this a competition, you did ask what people do, so here goes: for most of our marriage, DH hasn't even been in the same state for our anniversary because there's a conference he "has" to attend every other year. But frankly, I never really cared: he's so not romantic that even if he were home nothing would have happened. "Why are you giving me a card? It's our anniversary, like our wedding anniversary? Oh yeah, it is this month, isn't it?" *insert my eye roll* His job no longer has people attend that conference, but the "so low-key attendance isn't required" anniversary bar has been set. Funny enough, last month DD asked "When's your anniversary?" and DH got the date wrong! He said it without hesitation, like he's always thought it was that day lol.
Now, on the bright side: he doesn't think Hallmark Holidays (which include bdays and anniversaries, I guess?) require much--if anything--but he does little, thoughtful things throughout the year. Example: he made sure to buy me both Leiden and Netherlands Starbucks mugs while there this week. That's a big deal for me cuz they still sell my fave series, Global Icons, which you can't get in the States anymore. $30 in mugs isn't a huge gift in monetary terms lol, but the fact he made sure on the day he arrived to get them for me is very thoughtful of him!
And he's getting better about bdays: for my bday a few years ago, he got me the most perfect handbag. I'd been looking for a cross-body zippered purse that was big enough to fit all the junk SAHMs carry around for themselves and for their kids lol but small enough not to be confused with a diaper bag. It also had to have a thick, substantial strap that wouldn't break
and that was long enough for my tall frame (I didn't want the purse sitting on my chest lol). He got me the most perfect one. I still get compliments on it and people don't believe me when I say DH picked it out by himself! Granted, he had to shop with me a few times when I was looking lol so he knew what I wanted--but the fact he paid attention and got all the details right really pleased and surprised me.