In West Clock Town, deposit your rupees into the bank. When you have 200 or more rupees in your account, you'll receive the Adult Wallet. If you deposit to 5000 rupees or more, you'll get a heart piece.
To get a razor sword, do this. When you get to the mountain village, continue up until you get the lens of truth, Goron Mask, and Hot Spring Water. Once you have all that, go to the hut in the mountain village and pour your Hot Spring Water near the hearth (fireplace) to melt the ice. Once you've done that, the worker will thank you and offer you a deal of forging your Kokiri Sword for 100 Rupees to the Razor Sword. Note that this takes a day, sword breaks in 100 hits and can't be taken in time with you.
If you already have the Razor Sword, defeat Ghot at the Snowhead temple to bring about spring. When that is done, go to the Goron Village to see the Powder Keg instructor. Talk to him and he'll test your Goron Skills of bringing a Powder Keg (explosive Goron Bomb) to the "Unfrozen Lake". Hurry and get there and throw it up, and then grab it. Follow these steps. When you get there, you'll see a giant rock at the top, with "Crybaby Goron" up there. Throw your Powder Keg up there and nail an arrow to it to let it blow up the giant boulder. Go back to the Instructor to claim a certification and a free Powder Keg. This Certification allows you to purchase Powder Kegs in the bomb shop in West Clock Town. Now that you blew up that boulder, go into the hole that you made appear when you blew up the boulder. Inside, you'll see some Gorons. Talk to Crybaby in Goron Form and you'll be asked to race the others. Say yes and the race starts. This race is pretty tough, but when you get i!
nto your spiky form of rolling,bump into the other gorons to send them going back making the race easier. Once you come in first place, the Crybaby Goron will reward you with Gold Dust. Now if you have the Razor Sword (see above section), then go to the hut in the mountain village. Hurry though, since you have to bring the Gold Dust and Razor Sword to te forger by the 2nd Night to get it upgraded. When you're in the hut, talk to the forger and he'll ask for Gold Dust. Give it to him and he'll take the razor sword to forge. Come back tomorrow morning to receive your Gilded Sword! This is the best sword. It does triple the damage of the Kokiri Sword, is unbreakable, and can be taken back in time with you, unlike the Razor Sword.