I'm going to Los Angeles for a few days in December, and I haven't been on a plane in 3 years. If there are any frequent flyers out there I would appreciate the help - what can't you carry on with you? There are 4 things in my purse I'm sure they'll make me throw out, but I feel I need: contact lens rewetting solution, Tide To Go pen, lip balm and a bottle of asprin. The idea of checking anything makes me queasy - I don't want to lose things like contact lenses or glasses, certain personal items I'm bringing out, etc. Any advice?