Originally Posted by Shinjukan

I like this tip. But here's a question: What should one do if they found out that they didn't patch it thoroughly and that there's a leak? Should they rip the patch thereby risking making the whole thing worse?

Somebody also suggested using Acetone on the area around the hole before applying the glue (or the glueless patch) and then the patch. The idea behind it was to thoroughly clean the area around the hole from any powder-like substance that came with the tube that enables it to slide easier when mounting to the tire.