It's okay to carry cigarettes
In China and several other countries, cigarettes are not demonized like they are in the United States. Even if you don't smoke, it's a fairly good idea to carry a pack with you. You may think this is weird, but trust me, you will meet a lot of people and many of them will smoke. They will also offer you cigarettes; it's only polite to offer them one back. Don't worry, you don't need to smoke it, just hold onto it. Think of it like currency, or better yet a peace offering. Oh, and another thing: Don't just give 'em the cheapest ones either, spring for the $5 pack. If you are looking to close a deal, find a destination, or just make friends, carrying a pack may be the ticket.