Save $5 off $25 in-store at Toys"R"Us
Save $5 off $25 in-store at Famous Footwear
Save $5 off $25 in-store at Aéropostale
Update: even though the T&C mentions it doesn't work on gift card purchase, it works when buying $25 Home Depot GC at store. It may also work on GC purchases at other three stores, and people even reported working for online purchase.
Here is part of the email notice for $25 Home Depot GC purchase:
You paid The Home Depot $20.00. Your special offer saved you $5.00.
Thanks for using PayPal. You made a $20.00 payment to The Home Depot on 12/2/2014.Your special offer(s) saved you $5.00.