The diaper bag is your key to any successful outing. It is your secret weapon in parenting. A well stocked diaper bag will make or break your outing. Here is a peak at what is inside that diaper bag.
If there is one thing you need and you need a lot of, it would be baby wipes. Don't laugh but baby wipes could save the world. You can use them to wipe dirty bottoms, to clean spills, to wipe off toys, car seats, faces and much much more. If you only put one thing in your diaper bag - it should be baby wipes. I prefer to keep mine in a hard plastic case, usually found in trial sizes at any store.
I prefer to have my own changing pad when I'm out. If baby has a blow out you haven't leaked on your mother-in-law's carpet or if you're in a public restroom you don't have to worry about who was there before you. Some, like this one, release antimicrobals to fight germs even one step further.
This is a must for immunization appointments and fevers that might pop up while you're out. This stuff is hard to find in the middle of the night when your away from home or in the middle of a busy day. And it's specialized enough you can't really find it often at the corner gas station mini-mart.
Links are used to hang toys from the diaper bag or for baby to play with for hours. They are also great for attaching your car keys to your belt loop or diaper bag. I prefer either Sassy Links or the Discovery Toys Boom A Ring Links. They actually hold better than some of the other brands.
These tiny plastic bags can be used for wet or dirty diapers, to protect you and everyone else from the smell. Or you could even use them to transport used cloth diapers while out of the house. Also quite handy for dirty clothes and the like. You can buy this compact dispenser (refills available) or stock your bag with grocery bags.
You need a change of clothes for baby, because babies will do what babies will do. I usually keep a onsie or two in my bag for such occasions. I'm a onsie snob and love the soft feel of the GAP onsies, but feel free to substitute the onsie or outfit of your choice.
If you've ever had a baby with a sharp nail you know it happens fast and it can really hurt. Your baby will become a pro at sprouting a long, sharp nail and scratching their own face just moments before you arrive for a photo shoot. Always carry nail clippers.