If you have kids then you probably have lots of little "things" everywhere.
One of my kids' friends got them each a bag of jacks. Instead of waiting for all of the little jacks to end up everywhere throughout my house I decided to make a bag for them.
The kids love the bags (they can differentiate whose are whose by the bag), they are easy to open & close, and I love that the little pieces end up back in the bags - not all over the floor!
I made one for my girlfriend's kid and she said she uses the bags for snacks. Easy enough to clean up, not a wasteful single use bag, and doesn't take up as much space as a plastic container! Yay!
This one I made with outdoor material so it can stay - well - outdoors. It has their many, many pieces of sidewalk chalk in it.
This fabric will become one for a birthday gift for one of the girls' friends. He can put his Lego pieces in it - and bring them with him to a playdate!