I'm having the hardest time finding a good cup to send to school with DS. He is 4.5 and all cups seem either babyish/they leak too much or are just for adults. I send him water for school, as I just don't want to mess with juice boxes, etc. Any ideas are helpful.
Re: Cup for 4+ year old
I send a Thermos Funtainer bottle in DS1's snack. It's the most-fool proof "sippy cup" I've found.