You may think you know everything there is to know about male prophylactics. But just in case you don't, keep these things in mind:
1) Make sure your nails are trimmed before getting started
2) Always have more than one on hand
3) Tear open the wrapper carefully
4) If you are using lube, put a drop or two inside the condom
5) If your partner is uncut, first pull back the foreskin
6) Unroll the condom all the way to the base of the penis
7) Make sure there are no air bubbles that can cause the condom to break during sex
