In my opinion this
is the best mothod to use if you don't have a decent brake. Take your racquet with you to the local hardware store and sample several s-hooks, see which one fits the best. Then simply watch the video; it's pretty self-explantory. While I'm a proponent of having at least one starting clamp, for this method you don't need one. All it'll cost you is about $.22 (if that).
Need help finding lost dog: walks with a limp, recently castrated, can only see out of one eye - answers to the name, "Lucky".