I get emails for deals and specials from Ace hardware. They may not be everywhere, but a phone call to your local Ace store may be worth it.
"Sample Pints Only $0.99!
For a limited time, find your color with sample pints of Clark+Kensington or Valspar Custom-Tinted paint for only 99 cents each. Start the search for your new colors and begin spring with a fresh look in your home. Limit 4 total, and samples must be tinted in unique colors."