I no longer spend money on slips or pens- I have a computer program I got from a yahoo club I joined that allows me to have the customer com up to me and give me the name of the song and I keep a book with me at all times plus a laptop that I run my program on that handles rotation as well as tells me what they are singing. the group is Karaoke universe at:
http://groups.yahoo.com/group/karaokeuniverse/
try it out you might find some cool insights as well.
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