I did some checking and I found some hard copies of some years; 1999 (4), 2003 (5), 2004 (6), 2005 (6), 2007 (5) and 2008 (6). I was very surprised I had any still in the filing cabinet, I thought I cleaned most of it out when we moved. I know that I had to keep some of these for 7 years for tax reasons.
I also had the Expedition de Mexico which was a 21 days that included Copper Canyon. That was once a year.
As with all of my adventures when I would add a new trip or make major change, I would scout it out. When I had what I thought was a finished product. I would invite friends to go with me and critique my presentation and the whole adventure . They would fill out the questioners daily and then at the end a overall thoughts.. I would see what I need to change or adjust. This was before taking paid clients on the adventures. These and my personal trips were not on the calendars.
Back in the working days crossing the border was a breeze. I had my Mexican insurance for the year. I had my FM-3 Work Permit (This is in place of the Tourist Permit) and with the FM-3, I got my TIP for 365 days. The first trip with the new FM-3, I would have to check in get it stamped and get the TIP.
Frenchie