Well, right now I'm working out 3 days a week. In the summer, I'm going to do 5, with two of them being leg days. But on monday, wednesday, and friday, will be arms. Basically that's what I'm doing right now, it's all upper body. Biceps, back, triceps, pecs, shoulders, etc. I know some people do things on different days. However, it feels like it would be more effective for me to just work them all. My goal is basically to be able to lift more, maybe improve a bit in size and definition a little bit, but lift more weight is the main goal. The reason that doing different things on different days doesn't make sense to me, is that say I'd do 3 or 4 sets of curls for my biceps on a day that I would work my biceps, and only do that once for the week. As opposed to doing 3 or 4 sets of curls(the exact same thing) 3 times a week. Is that how it's done, or do you do more sets? Also, what are workout schedules people would usually do for 5 days a week? Thanks!