The deal of the day today at the Family Dollar is a coupon that you can appreciate no matter what store offers it. It's a coupon for $5 off when you spend $25. The coupon states any net purchase of $25, which I would guess would be the same as when you shop at the Dollar General, your total before coupons and taxes has to be $25. I would just clarify with a cashier before you start going for the $25 goal though because if the term "net" means including taxes, it'll be an even easier.
This is the definition according to dictionary.com. Sold at a stated price with all parts and charges included and with all deductions having been made. Take it the way you choose. I would hope it to be like DG. Sorry if it's not.