I like to split the creatine in halves for 30 minutes before working out and after working out. Most people like to take the creatine 30 minutes prior to weight training. Someone on this forum told me NOT to take both creatine and whey along with each other in same shake. I think creatine was meant to take on a semi-empty stomach.
In short, creatine before workout and whey after to KISS (keep it simple silly).