A really big problem I have when performing with my double bass, is that the endpin keeps sliding on the floor. Unless there is a carpet or the floor is grainy (or something that isn't slippery), I have to keep the bass from sliding. This is really tiresome, because I have to actually hold the bass, not just balance it against my body. At home I have a carpet on the floor, so this doesn't happen.
Is there something double bassists use on the live shows to prevent the bass from sliding?