Milk crates are a great way to store items but have you ever wanted to keep a bunch of nuts and bolts in one?
Cut out a bunch of cardboard panels like this to make a simple milk crate insert that is now great for catching screws and nails that are always jumping out of their packaging.
You can hang crates from a wall with hooks like shown here. This is a great way to store and swap out crates for different jobs. Take note that the milk crates in the photo below are resting on a sturdy ledge that is supporting the weight.