Happy anniversary, Wendy!!
I usually buy a small box of chocolates, or something like that for hubby & the kids.
I did more when the kids were young. We'd make cookies for school to hand out with Valentines (either store bought or homemade).
Every few years, I do something special - write things I love about them on hearts and tape them up on the wall. One year, I did that leading each day leading up to Valentine's Day.
My boys both have GFs this year. I took Connor shopping yesterday to get something for his GF. He ended up with a big teddy bear, some candy and a frame to put pictures of them in. It's kind of cute to see how sweet he is and watch him struggle with figuring out what to get.