Argh, for the last time… IT’S NOT A PURSE!!
Seems like my husband and I have this conversation every few months. I started carrying a chain wallet my sophomore year of high school. My locker was on the opposite side of campus and ginormous purses were trendy. I felt kind of silly carrying a backpack, and a huge purse, since I didn't have the usual collection of make up, hairspray, and whatever else it is that girls carry in purses. My graphing calculator and whatever I happened to be reading fit just fine in my backpack.
I didn't mind carrying a bag until I became a mom. It was too easy to pack up a diaper bag for every single thing that might happen while we went to the grocery store. And later, Paul kept wanting to fill it up with whatever toys were closest. I guess it was sometime around 16-18 months when I gave up the diaper bag for good. My back wishes I had done it sooner :P. These days, Paul has a kid sized CamelBack, which is really nice. There's room for a couple of diapers, spare clothes, travel wipes, snacks, toys, books, and of course, water. It's also to small for him to really overload.