What are towns or cities on the U.S./Mexico boarder?

I have heard of people living in one country and traveling back and forth for work. What are cities that this can easily be done in, and how would you go about doing such a thing? I am speaking as a U.S. citizen, and working and living legaly in both countries. What are good towns or cities to live in, and what are good towns or cities to work in? I do have family that work for GM that could refer me to a good position since they are in upper management, and have heard of a factory, that is on the Mexican side of the boarder, do you know where this is? My question is more about how people do this, where do they live and work, what kind of documentation do you need as a U.S. citizen, I have family in Mexico that could obtain property and living arrangements for me on their side if that would be better, How easy is it to do this. If I was to do something like this, I would probably own property housing on both sides, eventualy, and would probably like to work in the US, is this possible?

Well, southern California is a place with good climate and middle class neighborhoods in Tijuana are not so bad, but if you are about to buy a house its better to live in the US, servicies in mexico in a nice neiborhood are mre expensive, the other cities have a terrible climate, way to hot at summer, windy and dusty in early spring...But Juarez - El Paso is one of the cities with more foreign investment in the world, the people is the same in both sides since around 80 to 90 % of the pop in ELP is from Mexican descent, its cheap enough in both sides, unlike Tijuana, and there is plenty of jobs...But.....there is not a single border town in mexico that you can call "beautiful" and jobs pay less here,

My suggestion is that you visit the place first, ask the locals how they do manage to live in both sides, and see if it is suit it for you

San Antonio, San Diego...
I'm pretty sure you now need a passport.
Yes it's possible. The commute will be no fun IMO.

nogales, arizona

Nogales/Nogales
El Paso/Juarez
San Diego/Tijiuana
Laredo/Nuevo Laredo
Eagle Pass/Piedras Negras
McAllen/Reynosa
Brownsville/Matamoras
Del Rio/Ciudad Acuna

--etc....try wikipedia for a complete list.

the guy above got it.

Also, most bridges have a line for frequent pass but I thing you have to pay over $100/year.

LL and sans are right although the fast lane costs more, my cousin麓s husband paid about $400 for a year