Wallet

A Wallet is a bag used by Link in almost every The Legend of Zelda game, used to hold the series's currency, Rupees. Starting in Ocarina of Time, the games feature several wallets of varying maximum capacities that can be acquired through various means as the game progresses. The actual maximum capacity and name of these wallets vary from game to game.

The Legend of Zelda through Link's Awakening
In The Legend of Zelda, A Link to the Past, and Link's Awakening, only one wallet is had throughout the course of the game, and is in fact not even mentioned. The Adventure of Link doesn't even have a Rupee system, as there are no items to purchase.

The Legend of Zelda has a maximum of 255 Rupees, due to that being the maximum value for a variable in older computers (such as that used in the Nintendo Entertainment System. A Link to the Past and Link's Awakening both feature a maximum of 999 Rupees.

Ocarina of Time
Ocarina of Time has Link starting off with the Child's Wallet, which can hold a maximum of 99 Rupees.

Majora's Mask
Majora's Mask also has Link beginning with the Child's Wallet, still holding a maximum of 99 Rupees. After depositing 200 Rupees in the bank in West Clock Town, Link will be rewarded with the Adult Wallet, which holds up to 200 Rupees. The final upgrade, the Giant Wallet, is obtained by defeating all thirty Gold Skulltulas and collecting their spirits in the Oceanside Spider House.

Oracle of Ages and Oracle of Seasons
In Oracle of Ages and Oracle of Seasons, the wallet scheme is similar to A Link to the Past, in that only one wallet is ever had, and the limit is 999 Rupees.

The Wind Waker
The Wind Waker saw a substantial increase in Rupee amounts, giving the player an initial wallet that held 200 Rupees. The first upgrade, both of which were given to Link by two Great Fairies, saw Link's wallet capacity increasing to 1000 Rupees, with the final upgrade raising it to a series-high 5000 Rupees.

Twilight Princess
Twilight Princess began the game with Link having a wallet capable of holding 300 Rupees. After finding a girl named Agitha who requested Golden Bugs, Link was able to find these Golden Bugs and give them to her, receiving two wallets in the process. The first upgrade held 600 Rupees, with the final upgrade capable of holding 1000 Rupees.

Phantom Hourglass
Phantom Hourglass saw no wallet upgrades, but had a single wallet that held several thousand Rupees.