It's always nice to have paint samples...for small projects, testing a certain color (the shading in our dining room varies hugely over the course of a day), or just fooling around with. I even painted our front door fuschia with a free paint sample! (Husband didn't like it at first, but seems to have grown into the idea.)
There are a few out right now -- you can get a free Benjamin Moore 2 oz. sample, just by presenting this coupon. Or make tracks for Valspar right after 9 a.m. CST -- they're giving away 1,000 samples a day.
Money Saving Mom, for the heads up.)