Than a sippy cup of milk (even if it is rice milk) left in the van for 24 hours. BLECH. I found Buddy's cup from church yesterday and 1/4 of his sandwich in his seat when we left for the dr's this morning. The birds finished the sandwich. I just plugged my nose, opened the cup, dumped it, and put it in the dishwasher. YUCK, YUCK, YUCK!!!
(eta ~ it was not my job yesterday to clean out the van after we got home...AHEM.)