A screenshot from Taobao.com shows five disposable urine bags. [Photo from Taobao.com]

Disposable urine bag

Price: a few dollars

With the disposable urine bags, travelers can feel relieved when they have no access to toilets, for instance they are caught in a serious traffic jam. The cottons and water-proof coatings inside the bags can prevent leakage-caused situation. And the sealing tapes avoid the odors coming out of the bags. Besides, the bags are also good for car-sick people when they want to throw up.