How to delete client data

How can I delete client data? Like im using crazyclient and I wanna clear the data, like all the hacks what are on, every time I log back in. Or what ever, Anyone know what Im talking about?

Right click on title screen -> Settings... -> Local Storage

Set to 0 KB to disable cookies. Now the client won't remember anything after closing it. If you need to turn it back on again, move the slider to 100 KB.

Thanks jani! That works