When I would go flying with my Dad when I was growing up, the one thing that was the same on every flight, no matter where we were going or how long we were going to be in the air or how much time we had or who was going along or how impatient I was, every flight started with the checklist. There was a little laminated card tucked away in every plane, and it didn't matter that he could fly that plane in his sleep; he would go down the preflight checklist item by item without fail. A couple thousand feet in the air is not the time to realize you forgot something.
Ok, so it's no life-or-death situation, but I'm thinking of implementing a similar checklist policy in my own house. The first thing I would do is laminate my Sunday Diaper Bag Checklist. Leaving the house at 8am and planning to return sometime around 1pm, with three children, it would go something like this:
Wallet (check)
Phone (check)
Keys (can't find them)
Chapstick (forgot - Mary ate it)
Camera (check)
Diapers for Michael (4 - check)
Diapers for Mary (3 - check)
Wipes (check)
Spit-up cloth (check. wait, smelly. new one - check)
Extra clothes for Michael (check)
Extra clothes for Catherine (underpants, skirt, shirt - check. wait, she won't wear that shirt anymore - something about the button, or the stipes - new shirt. check.)
Two sippy cups (with valves - check)
Spare barrettes (check)
Pacifier (check - wait, fuzzies. cleaned - check)
Blanket (check)
At least 2 snacks each for Catherine and Mary (2 cups of cereal, 2 cups of carrots, banana - check)
Sunglasses for Catherine (it's raining outside - doesn't matter - check)
Sunglasses for Mary (check)
Unfortunately, I didn't have this checklist with me last Sunday, and my diaper bag was still in utter disarray from the trip home on Saturday (a "Flying Cross-Country Diaper Bag Checklist" would require a lengthy scroll). So I forgot a key diaper bag element: Extra clothes for Michael. And he chose that day to explode his diaper through both the onsie and pants he was wearing.
Luckily, three things were working in my favor:
1. None of my clothes were caught in the explosion
2. He waited until second church was nearly over
3. I did remember his blanket, wipes, and diapers (I know that one should be a given - if you remember only one thing, remember the diapers - but I have actually had to stop at the store between churches for diapers before.)
So in the end all I had to do was peel off his old clothes (yuck), use 14 wipes to clean him up (yuck), and wrap him up in his blanket (in just a diaper). This worked great until I had to figure out how to get him in his carseat with the blanket situated in such a way that I could get his buckles on but the straps weren't cutting into his bare skin.
Success. I think he looks rather cute, although by his face I think he might prefer I consult the checklist next time.