Do you mean you left the door to outside open?
If not, dont sit anywhere without checking seat cushions, dont throw out any trash, dont do any laundry, check all pockets on your clothes, coats and jackets. Check all purses and shoes. Check in the food pantry in all boxes or anything open. Dont step on anything without checking it first. Check DVD players - computers, behond furniture. She is more than likely sleeping somewhere right now - so you may have to wait until this evening. Turn all bright lights off and listen for her. Make certian there is a sleeping pouch with their scent on it somewhere that she can get to - along with something wit a wonderful smell for her to eat.
Make sure there is no standing water anywhere. Close all toilet lids. close all drains in the kitchen and all bathrooms. Make certain all doors to the outside and to the garage stay closed.
Please keep us informed. Remember, many gliders HAVE been found safe and sound.