Word on Twitter tonight was that SOME Ebay accounts (not all) were getting a coupon for $25 off a $25 purchase (before shipping + tax).
Coupon Code is : HAPPY25
Put some item in your cart (over $25) and enter that code to check if it works before you fuss over this too much.
I checked my account and it happened to work. Picked up some 2011 Allen and Ginter inserts, a 2019 Kurt Warner jersey card, and two cookbooks that my wife wanted. Total of $28 for goods + $6 shipping + $1 tax - $25 coupon = 10 bucks for everything out-of-pocket.
You could sort by Buy-It-Now, Free Shipping, and limit it to $25+, and you might only be paying a little bit for sales tax if you see something you like. Enjoy the hunt! Let me know if it works or doesn't work for you!