FWIW -
Flex Spending Accounts (FSA)are one of the greatest financial scams ever perpetuated on the American Public.
Suffice it to say that unlike an HSA (health savigns account) the "use it or loose it" FSA's are nothing less than a massive unearned profit by the companies that count on the sub-80% redemption rates. You'd be much better off looking into an HSA, if you qualify.