I usually wear khakis or a nice pair of pants with a Chicos travelers top or a polo or a sweater. I can't remember the last time I packed a pair of jeans. I usually wear slip on shoes. I don't usually wear sandals but I sometimes do if on a short weekend trip in the summer such as the one I just took to Phoenix from DFW in August. I prefer to not look too sloppy because I think when you look nicer you are very often treated nicer. I very often wear a pair of black and white minicheck trousers with a black Chicos top. On my last trip to England in business I sat next to a woman in J in the same travel "uniform". We looked like twins. I guess I am not the only one that finds that particular outfit to be practical travel attire.