Warp to town -> talk to the tool dealer -> buy item x -> close the store -> talk again with tool dealer -> buy item y -> close the store -> talk with tool dealer -> buy item z -> close store.
As you can see, when we want to buy more than one 1 item from the same npc, he talk with the npc, buy item X, close, talk again, buy item Y.... Isn't it better to change, so instanted of talking with the same npc a lot of times, make it buy all the items that are from the same npc in a roll, like this :
Warp to town -> talk to the tool dealer -> buy item x -> buy item y -> buy item z -> close.
Like we do when playing manually. Well, maybe its useless, but it saves some time
