Shambles
Bluelight Crew
Caffeine is a stimulant... but not quite in the same league of stimulation as MDPV. Really not an ideal replacement. At all. Red Bull or similar would be nearer the mark, I'd say. Regular (daily) use of peevee won't keep you sharp anyway - tends to make you very spaced out with continued use. The focus is strong for a short while but you can't keep it going over any length of time, in my experience. Too spaced out to concentrate on anything much. Or too obsessed to think through anything. Just a bad idea all round really.