The Worst Daily.

5.  Weight loss pills
Nothing says “I love you” like telling your signifacant other to get their fat ass off the couch and lose weight.

4.  Acne Treatment System

3.   Viagra
While this can be mistaken as a good idea for a gift, think again.  Your significant other has a problem in the sack — let him fix it privately (he’s trying, trust me).  Don’t try to make his problem any bigger (pun intended) then it already is.

2.  Literature (Sex for Beginners, How to Have a Healthy Sex Life, etc)
Just like giving Viagra for a gift, it’s not the greatest idea.  While you may have only the best intentions, it’s a very selfish gift.

1.   Game Over
A few years old, but classic.