Usually in or near the herbs and stuff you will find a little brown glass jar with a yellow label. I can't remember the name right now, but it is supposed to be similar to Liquid Smoke. I think it's got seasoning or something along those lines in it's names. Next time (after Xmas probably) I am at the shop I'll make a note of it. My mom sent me some so I haven't tried it yet but everytime I pass it on the shelf I remember that it's supposed to do the job.
Alternatively, when I didn't have Liquid Smoke and hadn't known about this other product (some help I am, I know, can't remember the name), the recipe I use that calls for it I was able to substitute a smoke flavored BBQ sauce for the liquid smoke and ketchup (it's BBQ beans that I was making). It did the trick. Depending on what you are making it's something to keep in mind.