Surfing. It's fun, it's exercise and sometimes when he's in town, it's bonding with my brother.
Commuting. It gets me to work and I listen to podcasts to learn or be entertained, as well as use that time to call family/friends to catch up.
There is even a three for one or more. Here is my favorite example.
Night time reading. Steph and I read a book together before we go to bed. It's not just any book it's a book that helps our spiritual development, it's in Spanish which helps our languages skills and we do it together which is a great bonding time.
Not every activity in your life needs to accomplish multiple objectives, but if you look at everything you do, there are probably some chances to fit in more if you look for the two for one.
Have an awesome two for one? Please share in the comments.