Abstract: A method in a computer system for a ride sharing program is disclosed. The computer program will determine an amount of ride units that a ride to a predetermined destination is worth. At least two program members will agree to share the ride. Upon completion of the ride the amount of ride units will be transferred from the account of the ride requiring program member to the account of the ride providing program member. A member may purchase ride units or may earn them by offering rides other program members and completing the rides. Members may also rate each other based on their ride experiences with each other and these comments may be visible by other program members.

Abstract: Disclosed are door assemblies particularly well suited for opening and closing wide entries such as emergency room entries. The assemblies have multiple doors that can be overlapped at a side of the entry. If further access room is needed the doors can then be pivoted so that essentially the entire entry is open. There is an automatic latching system that activates as the doors are being pivoted to prevent some sliding motion during the pivoting.

Abstract: A seat liner may be used in a shopping cart. The liner may be sufficiently resilient to maintain its shape. The liner may display advertisements. The liner may also be disposable and stackable.