Deep Pockets

Deep Pockets is an unlockable passive item added in The Binding of Isaac: Afterbirth.

Effect

Allows Isaac to carry two cards or pills (or a combination of both) at the same time.
Increases the coin cap to 999.
If a room would otherwise yield no reward, 1-3 random coins will spawn.
- All coins spawned will be of the same type.

This item has the same effects as Little Baggy and Starter Deck, but without removing pills/cards from the game.
This item has the same effect as Polydactyly.
Has no effect on spawning coins in Greed mode, including the trapdoor/exit room.
Losing this item while holding more than 99 coins will reduce coin count to 99. Picking it back up again (if playing as Tainted Isaac, for example) will not restore lost coins.
- This includes going for Knife Piece 2 in Mines.

A Dollar: Allows Isaac to gain the full 100 coins when picking this up.
Contract From Below / Guppy's Tail: If the room clear reward is removed, spawns 1-3 random coins. Allows Deep Pockets to remain useful at high luck.
Greed's Gullet: After exceeding 100 coins, Isaac gains an extra Heart Container for every 100 coins instead of every 25.
- Keeper/ Tainted Keeper: The limit of 12 heart containers can be bypassed, allowing for up to 15 coin hearts at 999 coins. Additional coin hearts past 12 are not displayed.
Money = Power: Increases maximum damage bonus. The damage caps at +39.96 damage with 999 coins.
Midas' Touch: Increases maximum contact damage. The damage caps at 203.3 damage with 999 coins.
Options?: A pickup, card, pill, trinket, or Chest will accompany each coin.

Diplopia: No effect, only two pills or cards can be held.
- No effect. Only 999 coins can be held.
Perfection: Possibly detrimental. Since room clear rewards become very common at high luck, the 1-3 coin drop will rarely occur.