I did this last year. I had about 7 and 5 actually close they're show. I way made my money back. I usually do craft fairs in November so I get the Free Products from those and I don't have to put any money into the catalog shows.
I have been mailing the postcards imvites for my hosts for about a year now. I pay for postage and it has helped my attendance and I rarely have anyone cancel. I have found that sending a email invite a month in advance and then the postacrds in the mail at 3 weeks before the party. I send...
For the regular white postcard invites I use labels avery 5160 and then just type it up like it states on the postacrd and that has worked well for me. I pring up the return address lables with my wesbite info and how to enter the host info and I put it on top of the 'www.pamperedchef.com'