I will talk today about ‘cash back” credit cards for individuals. You usually get some cash back bonus when you sign up – say $100 cash if you make $500 in purchases or $500 if you make $1500 in purchases in the first 3 months. Usually after that most cash back is 1% of purchases, although some cards have special items that pay back more. Most have an introductory 6 or 12 month interest rate of 0%, then it varies. Many have no annual fee. Here is a link to look and compare some popular cash back cards:
http://www.creditcards.com/cash-back.php
Tomorrow I will look at airline cards.