I go thru a lot of paint and these work great. Will seal a can for months of reuse and dried paint will peel right off. What a great idea! These last through many cans of paint. I would still recommend using the lid for longer term storage of your paint.
http://www.homedepot.com/p/Shur-Line-Paint-Can-Lid-1783844/202903561?keyword=Shur-Line+Paint+Can+Lid