NEED HELP! Regarding a chalk pouch/holder

I like to chalk my cue between most shots whilst playing snooker and normally like to keep my piece of chalk in my trouser pocket instead of on the table itself. However as you can imagine by the end of a match my pocket is covered in chalk from top the bottom.

I have been told to invest in a chalk pouch but I was wondering which is better?

A pouch that acts as a waistcoat pocket or one of those magnetic chalk pouches.

Please help,

Thanks,

Sam.

NEED HELP! Regarding a chalk pouch/holder