Shopping in itself wouldn't really make me tired per say. Annoyed, probably. Wanting to leave, certainly. But not simply tired. The thing is, I got only about 4 or 5 hours of sleep last night, whereas I usually get 11 or 12.
Anyway, I bought two shirts. One was $12 (on sale) and one was $25. I really gave in to the latter. Amanda would surely spank me.
But shopping for clothes is utterly boring, so I compensated by buying a set of three stylus...es for my DS, a book of poetry by Emile Nelligan, Portal (the awesome video game) and a memory card for the GameCube. It isn't actually so bad, considering that I haven't shopped for anything but food in months, and will probably not be buying anything else for a while (except my rent here, but that is expected).
This all means that my cat got to play with bags when I arrived. She always inspects whatever new things I bring. She smelled all of my things, hid in one of the bags for a couple of minutes, then left. Inspection done, new objects approved.