Me too Joy. Been doing it since fall of '04.
Here are some links re: requirements for crossing the border for commercial purposes. If you're making trips once a week, get the $100 sticker. Go to the CBP home page and click on FORMS. Look for User Fee Decal. Lots of info to fill out and give them but it makes it easier. At least that's what I've found.
http://www.cbp.gov/xp/cgov/home.xml
https://forms.customs.gov/customsrf/getformharness.asp?formName=cf-7533-form.xft
http://www.usitc.gov/tata/
https://forms.customs.gov/customsrf/getformharness.asp?formName=cf-7523-form.xft
I would also like to say, NEVER EVER EVER argue with the guy at the booth. Don't be stupid! Some of them think they're god and it is bothersome but they have the power. Don't be an idiot and challenge them. You're being honest and not hiding anything right? So it's not a big deal to have to go inside. Even if you do have the decal. It's part of the job of the guy in the booth to present a tough front.
Some of them don't know everything, they are human afterall, but some do know what's what. The form in the link I posted above, 7523, is only intended for goods made in North America. It is not intended for goods from China. Stuff from China, where practically everything is made, is subject to duty and quotas.
I encountered "god" one day and even with the sticker and only around $300 - $500 worth of stuff, not a huge amount by any stretch, he made me go inside. Ok sir. Yes sir. Thank you sir. I go inside and the guys inside are talking to each other wondering what the hell the guy outside sent me inside for. They thought I had a huge dollar amount of stuff. It's a piddly little amount
and I had the sticker. They looked at my form, saw a lot of the stuff was from China, played tough guy for 2 minutes and made me pay $6 in duty because the stuff was made in China. Whoop di do da!
