Another great DHP thread!
I agree with Mr. John Hall as well, that it is very important because as DJs our job is very much about selling music, whether we like it or not. If the record doesn't sell, the artist might not be able to make another, and then who's screwed? The people on our dancefloor, the label, us, the entire club community.
GF, I also agree with %Serge% as far as organization is concerned- it helps a lot if you start cataloging your records early on.
Also, if you ALWAYS record your sets and ALWAYS write a playlist ... the old rule of using multiple senses - seeing, writing, saying, hearing - really helps you remember which record is whom and what label, etc. etc. etc.
"MAY YOU LIVE AS LONG AS YOU WANT, BUT NEVER WANT AS LONG AS YOU LIVE. MAY YOU LIVE TO BE 100, & ME 100 BUT MINUS A DAY, SO THAT I'LL KNOW THAT NICE PEOPLE LIKE YOU, HAVE PASSED MY WAY. AND REMEMBER, WHEN FRANKIE CROCKER ISN'T ON YOUR RADIO, YOUR RADIO JUST ISN'T REALLY ON."