Do you shop at Dollar General? if so, watch your receipts and check their website for the $5 off of $25 coupons. Every now and then, they are $5 off of $30, but the $5 off of $25 coupons are much more common. You can use the coupon first and THEN your manufacturer's coupons, so it's a great way to save a lot of money!
If you go to the Dollar General website, you can often print it from the list of printable coupons. They also have a mobile club that you can join to get this coupon sent to you via text message. Lastly, if you look at the bottom of your receipt if you shop there during the week, you should see it there as well. Every now and then it doesn't print on the receipt, but I would say that it does 9 times out of 10.