Summarize this article in one sentence.
To make this job go faster and get you back on your board sooner, having the right tools at the ready is a must. The necessary items are listed below under Things You'll Need. In particular you'll need pliers/screwdriver, a socket wrench or ratchet and a skate tool (or T-tool). It's easy to lose or misplace a necessary nut, washer, or some other part when you're working on your board. To prevent this, consider putting the parts you're not working with inside a plastic bag. For each wheel removed, you should have a bolt and one to two bearing washers.

Summary:
Gather the necessary materials. Store the removed parts in a safe place.