If you haven't caught on yet, everyone is laughing at you for simply suggesting that an off the shelf wax such as Meguiars is the "best wax ever." There are tons of different wax's out there that are to say the very least, far better than Meguiars. You can find all the information you can possibly want at this forum dedicated to detailing.
http://autopia.org/
Also for future references, try to be a little more wise when posting. I'm 99% sure you mentioning picking up wax at a dollar store is going make you look very foolish considering this is Supraforums and all. Also, you don't necessarily have to mention you're broke and in highschool. On a side note, congrats on graduating and remember to check out that link above. Goodluck.