Instead of running to the portal and warping twice to reset a shop, use the following trick to reset a shop without having to move, and only loading once each time. First, save the game. Each town has a save point near the shop, so it is not that far of a run. Once your game is saved, position yourself in front of the shopkeeper and see what he has for sale. If the shopkeeper is not selling something you desire, import your recently saved character over your current one and the game will load him/her into the game. Once your character has been imported, the shopkeeper's stock will have reset. You can either drop the items you buy until you are ready to move on, thus saving yourself money, or you can be honest and save after each purchase. If you import and the shopkeeper still does not carry what you want, just import over your character again repeatedly until he has the desired item. While it may seem like a lot of work to import repeatedly, it is still easier than running to the portal and warping twice.