Maybe the worst advice I have seen. How the fuck would making small electronic purchases show that you are a serious buyer? I'll answer that..IT WOULDN'T! Just contact the vendor that you are going to make a purchase from. Explain it is your first purchase, that you have read everything and that you understand how SR works. Tell them you are ready right now to make that purchase you just wanted to check with them first. Also tell them you understand to finalize as soon as you receive your package. That's it! Good luck and welcome!