cooking up a storm

I have two grandchildren staying with me for two weeks, ages 11 and 13, the eating years.  Since I usually live alone, I'm fairly relaxed about cooking for myself.  I have cooked more in the last three days than I usually cook in a month.  I'm a little surprised I still remember how, but they're eating everything I put in front of the them so it must be reasonably edible.  A not too surprising side effect of the cooking (which they do help with, by the way) is the marked increase in dirty dishes.  I'm running my dishwasher once a day instead of my usual once a week. But tomorrow, I've told them, we must eat out, because Dairy Queen is making a donation to Riley's Children's Hospital for every Blizzard sold.  So, not only must we eat out but we must also have dessert.  I think it's incumbent on us to do our bit, and they have agreed since it's for a good cause.