You may have seen a server before with "bank notes"- slips of paper worth money you right click to get. Imagine that, but with XP. People can sell custom experience bottles, with however much experience they extract. Possible commands and what they could do: /xp extract <levels> - You lose the amount you extracted, and fill a bottle in your hand with it. /xp extract all - Like the first command, but extracts all the levels you have. /xp use - Hold a bottle filled with the above commands and use this to gain the experience stored, emptying the bottle. Anybody else think this would be a simple, yet very useful addition? I think it'd be very useful to people that mass-enchant, such as shop owners who sell enchantments.