Go here and you can print the following coupons:
FREE Single Hamburger with the purchase of a Single Hamburger
2 for $5 - Double with Cheese
$1 off Boneless Wings
$2 off Premium Fish Combo
2 for $5 - Chicken Sandwich
$1 off any Wendy's Combo Meal or Large Garden Sensations Salad
And they don't expire until 3/28/10!