Kmart is doubling coupons with a face value of upto $2. In other words a $1 coupon becomes a $2 coupon and a $2 coupon becomes a $4. I have done this several times before and Kmart does not offer the best costumer service. So be careful and watch carefully as your coupons scan. Here are their rules. They will not double internet printable coupons. They will only double the first 4 coupons of a kind and they will only double 75 coupons in one order.
My suggestion is to only use coupons that are for 1 item not 2 or more (in other words save $1 on 1 box of cereal, not save $1 on 2 boxes of cereal). The later simply confuses Kmart.
With all that said, here are some items to get you started:
Marcal Paper Towels 2 pack $3.29 - $2 coupon (doubled) = FREE
Lysol Disinfectant Spray $4.50 - $2 coupon (doubled) = .50
Lysol Wipes $2.50 - $1 coupon (doubled) = .50
The Good Life Cat Food $3.99 - $2 coupon (doubled) = FREE
Revlon (various prices and coupons) may mean some free beauty tools, nail polish, etc.
Some General Mills Cereal is on sale for $2, with the right coupons, this could be free/cheap
Kotex 22ct Pantyliners $1.29 - .75 coupon (doubled) = FREE
Luden’s Cough Drops $1.29 - $1 coupon (doubled) = FREE
Bayer Chewable Low Dose "baby" Aspirin (36 tablets) $1.99 - $1 coupon (doubled) = FREE
Oral-B Adult manual twin pack (select varieties)$3.69 - $2 coupon (doubled) = FREE
Select Johnson’s and Johnson’s Gauze products $1.69-$2.79 - $1 coupon (doubled) = FREE
Quaker Rice Cakes $1.99 - $1 coupon (doubled) = FREE