Redeem coupons right from your iPhone's screen - free until April 22

Coupon Sherpa is a new app for the iPhone that promises to deliver in-store coupons for more than 100 major chain store brands, such as Zales, GNC, JCPenney, Rite Aid, Macy's, AMC Theatres, and so on.

An app like this doesn't promise to give you every coupon under the sun. It just promises to bring you lots of them, particularly for nationwide chains, and when it comes to savings, simply having timely information is your biggest weapon.

Coupon Sherpa looks around and finds going deals and compiles them in a list, by the type of product being sold. Most of the things you'll find are not for specific items, but for general savings, such as $5 off purchase of $35 (at GNC) or $3 off cakes (Baskin-Robbins) or buy-one-pair-get-one-half-off (Payless).