you'll still waste your time and effort taking useless supplements and using dumb products

Can't put enough emphasis on NOT doing this. It's expensive, and when you're not receiving the advertised effects of these "super-sups," they will completely demotivate you. I do use protein in powdered form, and will sometimes use a pre-workout, but I don't depend on either.

TL;DR - Eat right. Exercise. See results.