What is the best way to relieve your muscles after weight lifting?

Yesterday, I finally started conditioning for Junior Varsity volleyball. We got all new trainers, and all new coaches. This new trainer was very tough on us, but he was also pretty cool about everything. When we started lifting weights, he made us do a lot of arm workouts and plenty of squats with weights, then ab workouts, and bench push ups.

It wasn’t hard actually doing the workouts, but today it’s really hitting me hard. I’m really sore on my thighs, and oddly enough my butt. It’s sore, and I really want it to go away because I have this again Wednesday, and Thursday, and then again for another 9 weeks.

How will this go away?