Somehow, this cracked me...

Tissues (available everywhere in Beijing)

LOL though I visited China once (I was in Shanghai) and the lady gave me a weird look when she saw me taking enough of tissues for my private session LOL. It's as if they have a way of telling whether you're taking too much or too little of a toilet roll. Oops that's probably too much info ;p Have fun in Beijing! Looking forward to your cool pics @asianetwork