Cheapest way to lock up a non sure grip?

I caint believe we're actually advising somebody to do this. lol

why not ....cheap and easy and gets the job done ....even i have done this before........like said above ....be careful around corners and going in reverse is going to be tricky ......but its well worth it to be able to leave TWO black marks instead of one and especially if you dont have cash for a sure grip unit :D:D