Or is it better to just let the kids go in and out of the house all day every day during the summer?

You know what would be MORE efficient? Sending the kids to summer camp!

Probably not

put a door check on your door and when the rugrats leave lock it behind them hahaha works for me. tell them " in or out make up your little furry minds?".

just let them go in and out,revolving door could be money better spent,think of all the otter pops you could buy!!

My kids have a rule that they are to stay out till the i call them in for the next snack or meal. if they go in b4 that they have to stay in! till we all go out agin

I remember those days. Lock them out. lol

If I had a dime--- no, a nickel ---- no, really, a penny would do--- for every time I've said "Please close the door" this summer alone, we could buy a huge new air conditioning unit.

The revolving door is a concept I had not considered---but it would definitely be more energy efficient at my house!

(And if I could harness the mental/emotional energy I have spent on the motif of "close the door" I could power my house for the summer)

And let's not even visit the "standing in front of the open refrigerator door" issue...... and it's not just the kids!