Credit cards are revolving accounts, which means you can revolve a balance from month to month as part of the terms of the agreement. And even if you pay off the balance, the account stays open. A credit card with a zero balance (or a very low balance) and a high credit limit is very good for your credit score.
No-reserve auction. A No-reserve auction (NR), also known as an absolute auction, is an auction in which the item for sale will be sold regardless of price. From the seller's perspective, advertising an auction as having no reserve price can be desirable because it potentially attracts a greater number of bidders due to the possibility of a bargain.
A reserve price allows you to set a low starting price to generate interest and bidding, but protects you from having to sell your item at a price that you feel is too low. For example, if you want to get at least $100 for your item but you're concerned that starting the auction at that price will discourage potential bidders, you can set a reserve price of $100. Then you can set a lower start price, such as $20. Reserve not met will appear under the current bid until your item receives a bid of $100 or more.