This week Target has a coupon for a $5 GC if you spend $20 or more on beauty items. Razor blades, oral care, cosmetics, hair care, body wash, deodorant, etc. By dividing up my purchases I've already collected 6 GC. It's a great way to stock up on items that we use regularly. Razor blades alone can be over $20. The back of the GC does say that it can't be used to buy another GC, so I'll use the GC to pay for future purchases at Target and then set aside the dollar amount of the GC from my household budget for toiletries to use for our October trip.
I'm not sure if Target will give you 2 GC if you spend $40. I've had my kids get the coupons on their phones and then divide the items so we each have $20 worth.