I propose a CoAlpha meeting. We could meet in San Diego and then go to Tijuana. In Tijuana, I recommend visiting the outdoor food market, the shopping mall, the prostitution district, and a residential area (Playas de Tijuana). We could cover this in a day, and it would give you a good idea of what Mexico is like. Of course the main purpose of the trip would be meeting each other, so Mexico would just be an extra benefit. We could meet in the San Diego airport on a Friday and then go to Tijuana, and return Sunday morning. What do you think?