So, you've purchased a cart load of items from Costco, pushed them clear to the opposite end of the SUV jungle, unloaded all of it including milk and cheese. It's blazing hot outside, you've returned the cart and your kids are finally all buckled in. Your 3 yr old urgently says "Mommy! I need to go potty!". What do you do? Of course you unbuckle, grab the baby and B-line it for the potty, back across the parking lot and through the entrance, clear to the 'conveniently located' Costco potty. Your 3 yr old makes it, just in time, but you realize right then he's not the only one who needs to go! So you look around for one of these nifty Koala Baby seats and think, "these are at the library, and probably ToysRUs, and this is Happy (baby) Valley, why not here!?" There are no willing Baby-holder Grandma types in sight, in fact there's not another soul in the restroom. You wish you were Male and had one of those Handy-camping-gadgets (Grandma's name for them) at least or a stroller or cart or something! What do you do?
You plop that 7 month old on the floor of the Handicap stall (It's bigger, less dirty, right?) and go faster than you've ever gone before, scoop the baby up, wash your hands AND the baby's hand (ICK!) and dash back out the door, back to the car, buckle all little ones and turn on the A/C, hoping the milk and cheese didn't suffer much, that's what you do.