Valentine's Day Gift for Both of You: Condom Gift Pack
This is a great deal any way you cut it. If you were to buy the condoms alone at a discount store, it would be more expensive. You will not find 48 condoms for a lower price anywhere, but you also get three vibrating rings and a lovely metal case for easy and safe portability.
Show him/her that you care enough to care about his/her health -- and that you care about your own health. What could be more romantic?