Disclaimer: Nothing to Declare is not part of F2C but is entirely legal and we recommend supporters to visit it.
The Cross-Border Shopper is a target for the UKBA/HMRC. If you are a Cross-Border Shopper buying tobacco/cigarettes you become a PRIME target for UKBA/HMRC.
GET ADVICE ON CROSS-BORDER SHOPPING & APPEALS AGAINST SEIZURES. DO NOT BE WRONGLY BRANDED A SMUGGLER. This site is of critical importance to shoppers. These guys do not just talk the talk. They walk the walk.

http://nothing-2-declare.blogspot.com/
In particular, you can help fellow cross-border shoppers:
http://nothing-2-declare.blogspot.com/2012/02/help-fellow-cross-border-shoppers-now.html