The Dad Force One GI Joe card is absolutely awesome! I love every bit of it, especially "researches obscure topics for 3 hours to save $12".
Get back to the gym if you can fit it in. I decided to do something about the dad bod and have been working out 3-4 times a week since March. The results already show. I like lifting a lot but not so much cardio. It helps that my work has a gym in the building. I think we're about the same age.