Bidding box for home-played games. Use of bidding boxes has several advantages over oral bidding: it reduces noise in the room, prevents bidding being overheard at neighboring tables, allows easier review of the auction, and reduces the opportunity to pass unauthorized information to one's partner (intentionally or not) by the manner and intonation in which one makes one's bid. A bidding box is typically a plastic box with two slots, each containing a set of bidding cards. One slot contains 35 cards with symbols of bids (5 denominations—clubs (), diamonds (), hearts (), spades (), and notrump (NT)—in seven levels of bidding,
Bidding to wait for a lot to be called. This means that a bidder doesn't have to keep his eye on a live auction at a specific time. By entering a maximum bid, a user is indicating the highest he is willing to pay for a lot. An automated bidding service will bid on his behalf to ensure that he meets the reserve price, or that he always stays in the lead, up to his maximum bid. If someone else has placed a bid that is higher than the maximum bid, the bidder will be notified, allowing he to change the