Best personal finance posts from around the web

File this under boring, but necessary. Blunt Money explains how credit card interest is calculated.

Need/want to lower your cell phone bill? Cash Money Life has seven tips to pay less for mobile coverage.

Free toothpaste, Haagen Dazs for $1.50, and free Mars candy bars are some of the deals at featured in Coupon Cravings’ lists of what is free and super cheap at CVS, Walgreens and Rite Aid.

If you are being hounded by a collection agency, read Five Cent Nickel’s steps for getting the upper hand.

There are all kids of great deals and freebies on Common Sense With Money, including $5 subscriptions to Marie Claire, Redbook, and InStyle.

Frugal Dad finds financial peace in an 11-year-old pay stub.