hehe I know what you mean, I must confess (don't laugh footyGAF) but in December of 2012 I joined P90X-GAF
It was absolutely awesome and I get exactly what you mean, I have a hard time motivating myself to go to a gym but if I don't have to leave my flat? Yeah I'm in.
I did the 90days but when my started working my job I didnt have much time for it anymore. Nevertheless I in December of 2013 I once again started doing push ups, various P90X routines (without the 90 day workout plan) and havent looked back since. Added running in April and mountain biking in May. I love to finally feel fit... (I was never overweight, I actually have a really hard time putting on any weight or muscles but that's exactly why I needed to get my ass of the couch and start working out).