Abstract: A wheelchair slipcover is provided that includes a first covering member and a second covering member that is adjustable for different wheelchair sizes and configurations. The first covering member has a back covering portion covering a back of the wheelchair, armrest covering portions extending around from both sides of the back covering portion and attaching vertically along the seat portion of the wheelchair. A second covering member covers the seat and the backrest, positioned on the first covering member.

Abstract: A wheelchair slipcover is provided that includes a first covering member and a second covering member that is adjustable for different wheelchair sizes and configurations. The first covering member has a back covering portion covering a back of the wheelchair, armrest covering portions extending around from both sides of the back covering portion and attaching vertically along the seat portion of the wheelchair. A second covering member covers the seat and the backrest, positioned on the first covering member.

Abstract: An electronic calculating device for conveniently calculating a percentage of a value, as is often performed in a restaurant or bar when calculating a gratuity based on the amount of a bill is provided. The invention is a device having a first side and a second side, with a control mechanism on the first side which the server or diner can use to input a bill amount. A control mechanism is positioned on the second side for causing a processor to calculate a percentage value of the bill amount. Preferably, a display is provided for displaying the percentage value or tip amount, as well as the total of the tip and the amount of the bill.