Visitor in home had lice.?

I just got a phone call that a visitor who was in my home yesterday has lice. She was here for a few hours and was in the living room, dining room, kitchen, and office. I have checked my husband's head and my own. We have no sign of anything. I am very sure I have not gotten anything because I had a hair appointment this morning for color and a cut. If something was there, I am sure my hairdresser would have seen it. I also took all slipcovers and tablecloths off and washed them in hot water. We vaced all areas, including the furniture where she had been. I washed the hand towels and rugs from the bathroom that guests use when they are here. I also got all rugs, throw pillows, and our pet beds and bagged them up. I know I should keep things bagged for at least two weeks. Have I done enough to eradicate the lice if they were here? The very thought of it has me itching like crazy. Purely psychological, I am sure. Should I do anything else?