my aching ankles and feet

alright this is truly a critical subject but what can be done about the swollen ankles and feet at the end of my 12 hour shift?! my mother suggested to invest in some ortho stockings, which i have ( i got the futuro brand), but no real such results, but keep wearing them too b/c i don't want varicose veins! i got crocs and nike shox any other suggestions for comfort?! i looked at the wood clogs and quickly put them down w/ the $130 price tag--i don't think so! anything else for $100 or less i wont regret adding to my collection? i don't wanna be a young chica w/ fat, elephant ankles and feet! i got toooo many stilletos to wear for that!!