My only suggestion would be to put a sticky on each category that says something like

DO NOT JUNK UP THREADS IN THE CLASSIFIEDS, IF YOUR NOT INTERESTED DO NOT POST!

IF YOUR AD HAS NO PRICE IT WILL BE DELETED!

NO ADVERTISING W/O PERMISSION FROM ME!(BUSINESSES)

My $.02

Phil


Never hold your farts in. They travel up your spine and into your brain...that is where crappy ideas come from.