Dethroner Asks You: Building Muscle Without Weights?

So this weekend I hit a goal that I hadn’t been entirely sure I was ever going to reach: for the first time since I was a teenager, I officially weighed in under 200 pounds. I’ve never been happier with the way my body looks, although I’ve still got a small gut, soft, saggy tits and skinny arms. So obviously the next step is to start building some muscle.

I know the best option is to hit the gym and use free weights, but that’s not a good option for me for a couple reasons, primarily because I’m about to start doing a lot of traveling. I might be away from home for a couple weeks at a time. Plus, I hate gyms.

My question is this: Are there any good pieces of equipment or routines I could start with that wouldn’t require buying a set of weights and a bench? Some sort of secret military/prison training routine that uses counterlevered human body for resistance training? Or am I just going to have to put aside putting on muscle mass until I’m ready to go to the gym?