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,
Singaporean bridge and this is not a universal rule - is in no-trump games, the winner of the bid will begin the game. The other less-agreed-upon rule is the drawing of trumps. Some people play by the rule that the drawing of trumps can only begin when the player drawing trumps already has a void suit or when trump has been broken (i.e. a trump card has already been played), some play by the rule that drawing can be done at any point in the game, while most play by the rule that trumps can only be drawn when the trump suit