i'm echoing other posters a bit, but the two most important products are

1. sunscreen (i actually use the canadian stuff, either ombrelle by loreal or anthelios by laroche posay, 'cause those have mexoryl in them, which is supposedly FAR better at protecting your skin from sun damage than the stuff you can buy in the us.)

2. renova (or retin-a or the prescription derivative of your choice.) truly makes a difference, and it's not cheap.

i, too, pass for considerably younger than i am, and i swear by the above two.

as far as buying them in mexico, peachfront, i'm with you--doesn't make you evil to point out they're cheaper across the border. got my original prescription from a doc and filled in the states, but my refills? cheaper is better.

great topic btw, punki--thanks! ^