Do you still notice it after it's been up for months? I hardly see the tree after it's been up just a couple of weeks. I like change and variety; I don't even use the same tree each year, much less the same ornaments. Plus, my house is too small!
Years ago, my brother announced that he was donating to charity instead of giving gifts. My whole family breathed a sigh of relief, and we haven't exchanged gifts since.
If you want to get fancy, you could make little cards that say something like, "In lieu of a gift you won't appreciate, are too stupid to understand and/or don't really want, a donation has been made to _____ charity."