In the Zelda Dungeon item guide it says to complete the Great Bay skulltulla house on the second day when it is actually the first day in order to receive the big wallet.
I'm sorry to say, but this doesn't belong here. If you have found an error in a walkthrough, you should post it here http://www.zeldadungeon.net/contact-us/ . This way, you know that the site staff will get the message and correct the error as soon as possible. Looks like you're new here, so, I'll personally forgive you for this mistake. Welcome to the forums!