You can use a heavy blanket in place of a carpet to practice.
But note that some wax will be removed from your board when practicing like this. It might require rewaxing prior to mountain if you want to restore the performance.
And make sure you use a stone to eliminate the burrs so it doesn't catch your blanket and ruin it.
Last edited by rasmasyean; 01-17-2013 at 08:28 AM.