This month at CVS the Tums QuikPak is on sale for $4.69 and gives back $4.69 in ECBS. In Sundays Newspaper, there was a coupon for $1 off, and a rebate form to get your money back.
Spend 3.69 plus tax, get $4.69 ECB and get a rebate of $4.69 for the cost of a .42 stamp. $5.27 profit.
The Almay eyeshadow in this week's ad is 6.99 and there was a $1 coupon in the paper, and you get back $5 ECB so it really only costs .99. Limit of 2.
You could buy the Tums and 2 Almay. 18.67 total, minus $3 off of 15, and$2 in coupons=$13.67 and get back $14.69 in ECB's and the rebate. Not too bad.