Andrew, 25, IUD

Andrew might not know what IUD stands for, but he knows what he likes about it: he and his girlfriend get to enjoy the highest level of effectiveness, no hormones (she uses the copper kind of IUD), and they can have spontaneous sex whenever the mood hits.

She did have to go into the doctor to get it and her body needed a few weeks to adjust, but now (and for a full 12 years) it’s a worry-free “set it and forget it” method that they both enjoy.