I have one bottle of cologne in the bathroom that's about five years old. I hardly ever use it unless I'm doing something extremely special(read: a date). I apply deodorant to my underarms everyday, and use body wash, and those are about the only scented things I use on my body.
I had a cologne my ex girlfriend bought me (with my money) that was wayyyy too expensive (like $70 or something). I kept it after she left (it was still partially full after all) but never ended up using it, so threw it away after a while lol.
I do use deodorant though, and shower daily (nightly more accurately). No worries peeps I generally smell decent enough.