I make and sell one-off items and I keep getting all of my products stuck in people's baskets where they have added it to their basket and then left! How long will they be stuck in the baskets? Can I change this? Can I release them from the baskets myself?

My ecommerce store tends to deal with American customers so I thought it would be a good idea to deal in American Dollars instead of Pound Sterling. Is it possible to do this?

Why are there so many options on the Shopping Cart Atom config? Eg Disable Shipping Address, Disable Login ?