I dont really have a spending limit (for purchases with a sane price, I dont mean like, buying cars for the hell of it), so by my nature I tend to just buy things seemingly at random, when I feel like it, which is pretty frequent.
I only really have one major interest, which is gaming, so it's usually related to that. But it can also be related to convention trips, thus involving hotel/food/transport costs or whatever. I'll usually set one of those up whenever I happen to find one that's within a driving distance I can actually handle.
So yeah.... I dont think "frugal" fits me.
Though, I do tend to notice when prices are off, and sometimes will just refuse to buy something if I think the price is bloody stupid.