Through May 30th, you can get a $5 rebate for every gallon size Behr paint you purchase. Or, if you have a bigger job, they are offering a $20 rebate for 5 gallon size from Home Depot. Go here to find the rebate form.
Lowes is also offering a deal on paint. Get $10 off for every $50 that you spend in paint and paint supplies through May 23. See store for details.