Cheers. Thing is, I'm quite lazy. That's why I started cycling to work, as it was the only way I could consistently incorporate exercise into my routine. The likelihood of me doing situps or anything like that is quite low!
think about it about like this, it only takes about 15 mins to do a small body weight routine 2x3 times a week, even for the lazy amongst us its not to much
3x10 pressups or 3x5 if starting out with 1 min between each set.
3x10 sit ups or 3x5 1 min rest. You could do crunches as to help build you up to sip ups but sit ups improve flexibility well thats what Im led to believe.
3x10 dorsal bends or 3x5.
and hold a plank for 30secs 3 times.
simple as that, the difference it makes to you will be a surprise, no need for hours in the gym.
Ive been doing martial arts for years, the fittest Ive every been was while doing full contact kickboxing, I could give you body weight routines that I still have nightmares about from my time while I was fighting :|