I'm right there with you for the most part. We budget discretionary funds for each of us after the bills are paid, mine goes to books, knives, ammo, and beer in no particular order, hers goes to stuff that smells good, quilting supplies, etc. Neither of us bag on the other over purchases. Fun stuff more expensive than our allowances we either save for or go on the wish/gift list (her sewing machine, my Henry .44 lever) The fly in things right now is that I just started grad school, so we've both sacrificed our allowances for the duration. Toy factor is greatly reduced for now.
I too have been known to drop some allowance funds on a bit of shiny/pretty stuff for her as well, never hurts to grease the wheels, and helping to frame a beatiful picture is it's own reward.