The secret is out: many Californians come to Tijuana for one commercial reason: to buy things we can't get in the States, or to get a better price here than on the U.S. side.
Prescription drugs (bring your prescription!) and over the counter remedies (this writer takes asperinas for my heart) are available here for a significantly lower cost (but make sure it's legal in the States). Do not buy illegal drugs. Do not exceed the limits of your prescription.
Name brand cigarettes cost around fifteen dollars a carton, or $1.50 the pack. Duty must be paid on more than two cartons crossed into the U.S.
Tequila (especially the deliciously smooth premium varieties) and coffee liqueurs are also a good buy (hint: check out the supermarkets as well as liquor stores). Mexico is famous for its beer (another good reason to stay overnight), and there are intriguing brandies and wines coming out of Baja California. U.S. citizens can only cross over one liter of alcoholic beverage. Stay a while and enjoy the drink here, instead of rushing back. Tour the winery in Johnson Canyon. Have a cocktail. Wine with dinner. Tequila and music after a movie or concert. And then, ah, a soft bed in a good hotel. But I digress. Where were we? Oh yes, shopping.
The artistic products for sale here are literally innumerable, and they range from the weird to the sublime. From this gorgeous hand painted teapot to that lurid Elvis on black velvet.
Pottery and ceramics are ancient traditions in Mexico, and the items available just in this medium alone, from plant pots to fine plates and hand painted tiles, are mind boggling in their scope and variety. Look around a few stores and artists bazaars, comparing prices and workmanship, before you decide which items you want.
Piñatas, leatherwork, glass, clothing, jewelry, laquer, etc., from all over the republic, are available in Tijuana. True folk art is there, hidden amidst a lot of kitsch and clutter.
Of course, maybe you really do want that fake-intravenous beer drip, instead of the folk sculpture from Oaxaca. Whatever. It matters most that you suit yourself. That's what Tijuana wants. That you find something you want.
Wander through the bazaars, from cheap little shops to hidden upscale treasures. Don't be afraid to say no, gracias. Don't buy anything you don't want. But, if you are interested, well then, take your time and bargain. Trust me, they want to sell it to you.