Some days I do "super setting" some days "GVT" but for the most of the days I do the typical three sets but with increasing weight... the standard 3 sets @ 10 reps is for people who just want to stay healthy and not gain muscle mass...
Lets say I want to work by biceps... I can easily do 10 reps @ 30 lbs... So what I do is my first set is @ 35 lbs and I need to do between 8-10 reps... my second set is @ 40 lbs and I need to do between 7-9 reps... My final set is @ 45lbs and I need to do between 6-8 reps... And I always shoot for the higher number... Lets say I can't get 6 reps @ 45 lbs, then I'll do one more set @ 40 and try to do 6-8 reps...
But I don't have alot of time to exercise since I'm at school... but during the summer I change it up just to keep lifting fun and challenging...
Hope that helps!
DeX