Abstract: A stackable cart upon which another cart can be stacked thereon includes a tray, a handle connected to the tray, and a plurality of wheels rotatably secured to the tray. The tray is configured to at least partially receive a handle of the another cart when the another cart is stacked on the stackable cart. The handle is configured to at least partially receive a plurality of wheels of the another cart when the another cart is stacked on the stackable cart. A plurality of the carts can be stored vertically with the carts oriented in alternating opposed directions. The carts are preferably nested together in a compact manner. In some disclosed embodiments the handle is a handle movable between an extended position and a retracted position and/or the cart includes a stand movable between a stowed position and an extended position.

Abstract: The wheelbarrow handle adapter has an adapter handle with a proximal end and a distal end with an approximate right angle bend therebetween. The adapter handle at the proximal end is attachable to a wheelbarrow handle. In one configuration a sleeve is inserted onto the end of the wheelbarrow handle and a handle bolt is inserted through the adapter handle intermediate the distal end and the proximal end to threadably engage the sleeve. In an alternate configuration the adapter handle having a tubular opening at the distal end is curved sufficiently at the distal end to insert the tubular opening onto the end of the wheelbarrow handle.