Yes the diaper bag...I am just working on extentions of that wonderful invention. Actually, I just use my son as an excuse now and stuff more of my stuff in whatever bag I take with us.
True story, important for men, my wife went out an bought our first diaper bag. A cute thing, made me feel, well, you know when I carried it. Thankfully, for the rediculous price she paid for it, it fell apart pretty quickly. I immediately went on the hunt looking for something more "appropriate." If in need, go look at Lands End, nice stuff, well built and just bag looking, not cute.