Essentially I playing index options. Either QQQ or OEX. They are high volume and easy to buy at bid and sell at ask.

I like friday (option expiration day) where time premium is minimal and correct guess will bring you 100%+. Incorrect guess will make you lose 100% :)

But the key is if you think that market is going down - you can monetize this move.

would you mind to elaborate a little more about this ?

Hey Id love more input if you would care to share :)