Carol,

My technique is to take a full stack of 20. I buy in for 40 chips, play 5 chips straight up 4 time while I put the other 20 in my pocket. After the last spin, head for the door. A full stack of 20 isn't missed as easily as part of a stack is. Try to play when there are 2 or more others at the table.

I'm good for 5 of each different one that you get from an Indian Casino.

Greg