Different types of stretching.
In the cold weather I will stretch a little as I warm up. I don't jog or bike, I just use extremely light weights to start with. If I'm going to bench, I would probably start with some light dumbells and do combo flyes and presses with a really good, slow stretch to get blood in the muscles.
During and after the workout, once the muscles are warmed up, I will stretch with more contractile force and ROM. The idea for me is to stretch the tough fascia that surrounds the muscle tissue. If I can get that to stretch, hopefully the muscle will not have to fight so hard to grow. Who knows? I think Parillo was all into that shit.
Once a week I will also get a deep tissue massage combined with PNF stretching. Been doing it for years. Works great with gymnasts and swimmers too.
Check it out...
http://www.sport-fitness-advisor.com/pnfstretching.html