I am only in my 6th week but we have had a cross country vacation planned for months now.. I live in Alabama and we are travelling out West as far as up to Washington state. Any suggestions on keeping comfortable and not getting too sick while riding? I am actually a contract driver and drive everyday and have found that driving and riding makes me feel more nauseous than anything. It will be our last family trip as 3 and I really want it to be great! We will be gone two weeks. Anything "extra" I should pack "just in case?"