TravelSox - Compression Socks
These socks exert a gradual compression on your leg, stimulating blood flowing and resisting uncomfortable swelling. They are said to "put wings on your feet!". I want feet wings! No but really, swollen feet during traveling stink. Even if you can't visibly see it, your circulation goes to pot when sitting in a chair for a long time. These are great for pregnant women too to reduce blood clots. Highly recommended - Oh and they look like dress socks so people won't know you're circulating AND looking professional.