I really enjoy lawn games and watching baseball in the sun and days filled with both of these can't be beat. I also really enjoy peeling that clear goo strip off the back of gift certificates and scraping the little bit of ice cream off the back of the lid.
A few years ago for my birthday I enlisted(forced) my friends to learn a bunch of songs and perform them with me, either singing or playing various instruments (I play mandolin and sort of fake it on banjo), and we did a mini booze-fueled performance and called it Cluster Folk (really proud about that part. Too proud). I count it as one of the best decisions I’ve ever made. Also there was a banjo cake.