Back in the day (7-8 years ago in high school) I was taking 5g of creatine per day along with weight gainer and whey protein. I went from (5'10") 145 lb. to 165 lb. in 2 years and was pretty ripped, working out 3-4x per week. However, college and getting lazy changed that so I'm looking to go back. I'm now just starting to work out again and my goals have changed, as I don't want to be super muscular but I want a nice physique with a decent amount of muscle. I also want to get my flexibility back as I'm now noticing during recreational activities (sports; get your head out of the gutter!) that I'm not nearly as flexible as I used to be. Alright, I think I went a little off-topic 
I work a pretty stressful job so I'm thinking I'll average 2x per week to the gym and 3x if my job doesn't kill me that week. Each visit I'll probably do a routine like Back/Legs/Bis or Chest/Tris/Abs, so only once a week per muscle group. I purchased some ON Whey and ON Serious Mass 1250 2 years ago when I was wanting to lift again but I never made that happen. The containers say they're good until 1/08 (hello!) so I'm going to still use them. What I'm looking for is when I should take these supplements if I'm only going to the gym 2x per week? I'll probably drop the weight gainer after it's gone and just stick to whey protein; creatine worked well for me in high school but I don't want to mess with my body if I don't have to and it caused me muscle cramps every now and again. Do I only take the protein on days I work out or maybe even the day after?
Also, let's say I work out my chest 1x per week. Say that gives me a 10 on muscle gain. Does working out your chest 2x per week give much better results so your chest isn't resting too long? If so, could it potentially gain more than twice the amount, or a 20+ on my fictional rating scale?
Thanks for any input you guys can give me!
I work a pretty stressful job so I'm thinking I'll average 2x per week to the gym and 3x if my job doesn't kill me that week. Each visit I'll probably do a routine like Back/Legs/Bis or Chest/Tris/Abs, so only once a week per muscle group. I purchased some ON Whey and ON Serious Mass 1250 2 years ago when I was wanting to lift again but I never made that happen. The containers say they're good until 1/08 (hello!) so I'm going to still use them. What I'm looking for is when I should take these supplements if I'm only going to the gym 2x per week? I'll probably drop the weight gainer after it's gone and just stick to whey protein; creatine worked well for me in high school but I don't want to mess with my body if I don't have to and it caused me muscle cramps every now and again. Do I only take the protein on days I work out or maybe even the day after?
Also, let's say I work out my chest 1x per week. Say that gives me a 10 on muscle gain. Does working out your chest 2x per week give much better results so your chest isn't resting too long? If so, could it potentially gain more than twice the amount, or a 20+ on my fictional rating scale?
Thanks for any input you guys can give me!