Today I finally took the time to hit the drums hard. After about a year of barely having time to play at all, I actually made some loud noise for the first time since I moved in.
Besides recalling I truly need new ear plugs (I'm sure I lost some hearing today :P) I have found out that I also need headphones (rather than using the speakers across the room) as I could barely hear the music I was playing along with.
Before you judge, I'm a rather quiet player - hence I forced myself to play louder than usual, simplistic '60s-ish rocky music with room for a lot of fills and such adornations.
I had a pair of foam ear plugs but one day I took them off and they were all covered in ear wax so I washed them with warm water. But the foam never compressed again, and I have to go out and get me new ones.