Use it Up
Using up what you have is a great way to reduce leftover paint. A gallon or more can be used as a primer for other paint projects. Less than a gallon can be used to paint a small room or experiment with an accent wall. A quart is perfect for updating a window frame or two, creating coordinated picture frames, or brightening up the inside of a bookshelf. Use a pint to personalize a tray, color a glass vase, or update a table lamp. Cheer up a birdhouse, coordinate doorknobs, or stencil a tote bag with a sample size of paint.
Still have some paint left over? Try finding someone else who might have a use for it.