Prevent Your Paint From Forming A Skin

So, you’ve lined your roller pan with foil (or DIY’d a pan) and your room has been painted. Now it’s time to cover and store the leftover paint. That is, if you have a mallet to tap the lid back on, and if you didn’t accidentally throw the lid away altogether. You know you can’t leave the can open. The paint will dry out and you’ll be left with a colorful (and useless) brick.
If that sounds like something that’s happened to you before or might happen in the future, as long as you’ve got some aluminum foil in the kitchen, you can avoid paint disaster. Just tear off a piece of foil to fit over the can and push the lid firmly over the foil, creating an airtight seal. If you don’t have the lid, simply secure the foil with a large rubber band. No more dry paint.