Sarah: If you can’t find a cart to borrow, you can rent one for a while. I didn’t do a thorough search, but I found this one quickly: http://www.k9-carts.com/Pet_Cart_Rental_Programs.php I hope all works out well with Droopy. Drool is being slung his way, along with prayers for his recovery. Pam McQuade, food slave to the Dashing Bassets