For in-store pickup, The Container Store offers the ErgoErgo Seat in Blue, Orange, or Black for $99. Coupon code "WOW15" cuts it to $84.15. (You'll need to select in-store pickup to receive the coupon discount.) That's $25 under the best shipped price we could find elsewhere. It can support up to 250 lbs. and is designed to strengthen back and core muscles. Coupon expires August 24.