Lately Dave has been making sun tea. I'm sure everyone is pretty familiar with this concept but in the morning before leaving for work he fills a pitcher with water and a few tea bags and leaves it on the window sill (once he also included a few mint leaves, which we'd gotten in our CSA share that week).
I prefer mine with lemon and sugar, whereas he's more of a plain tea drinker. But we can both agree that it's a pretty refreshing drink (especially in this unbearable heat!).
P.S. He also really loves the Lomo app on his iPhone, if you couldn't tell from those pictures.