As the mom of 2 kids under the age of 10, I am kind of a nut about sanitizing their hands. I ALWAYS keep a bottle of Bath & Body Works Hand Gel in my purse (and in my minivan, and another at my desk at work!). This stuff is great after a trip to the store, a gymnastics lesson, a play date, soccer practice (get the picture?) to make sure that my kids hands are free of all the nasty germs that lurk everywhere.
Sure, it's not going to make their hands spotless, but it will eliminate a good portion of the nastiest stuff they come in contact with in the usual course of an outing. It's also great to have on hand when I'm grocery shopping...I put some on a napkin and wipe the handle of the shopping cart before I hit the aisles.
Right now, I'm enjoying the Warm Vanilla Sugar scent, but there are oodles of other great scents available too. Check 'em out!