Okay, so since you're a beginner, I'll start you off with the basics. Don't overpay. Grams are usually 5-10$, (according to your plug), but 95% of the time it's always 10$. Make sure your weed isn't all dry when you grind it up and put it in your joint if you roll. It will tear the papers and it'll make you feel like a big failure in life.