take the 5g twice whenever...i'll usually do 5g in the morning then 5g in the afternoon then 5g before bed.
I agree, usually 10 grams a day is all you need on workout days, then 5 grams on non-workout days. Also creatine works best if you give it some simple sugar to transport it to the cells ( by spiking your insulin) the trick is to take your creatine, then about 20 minutes later take some dextrose. take about 35 grams of dextrose per every 5 grams of creatine. As for brands Optimum Nutirion usually has it pretty cheap. If you have trouble downing the power creatine, then get the capsules ( more expensive ), but convinent. when I used to weigh 165, creatine took me up to 185 in two weeks. ( all water ) but I felt a difference in my workouts.