Being a single mom for 20+ years, I have concocted an excellent recipe for preserving children.
Ingredients:
2-3 small children
2-3 backpacks
An assortment of clothing (per child)
Any other accessories that come in handy; (toys, games...etc.)
1 large family sedan
One or two worthy grandparents
Method:
Fill backpacks with clothing and other needy accessories (one per child)
Assemble children on the backseat of sedan, fasten securely in place.
Drop children off at grandparents house and let set for the entire weekend.
Note of precaution: It is best to keep a tight lid on grandparents or children may spoil.