"Don't throw in the towel" - meaning "don't quit just because it is hard work"!  Developing and maintaining fitness IS hard work - but is surely worth that effort. And on the subject of towels - here's a selection that haven't been thrown in, modeled by guys who have most definitely been putting in the work!   

Start now!! Time to confirm your commitment to fitness...   ...unless, of course, you started already! You know where is the place to be... surrounded with the equipment you need to improve yourself, and hopefully alongside some good friends with similar ambitions.