Whenever you paint a room, it's important to keep track of the colors/finish style used. That way if you have to touch up the paint later, you'll be able to get the paint you need to make repairs. A good way to keep track of the paints used is by using the back of the light switches and/or electrical outlet panels. If you right this information on the back of the panels when you do your painting, you'll never lose this information so you'll always have the paint information available if needed.