a basket
Examples
Conventional wisdom is not to put all of your eggs in one basket. 80/20 wisdom is to choose a basket carefully, load all your eggs into it, and then watch it like a hawk.
Trust is as slippery as a basket of eels sometimes.
My subjects are like rats in a basket.
Basketeer who makes a basket makes a hundred if he's given line and time.
Children's love is like water in a basket.
Many words do not fill a basket.