Sometimes you don't have enough room for a tripod, or any other stabilization. That's where monopods come in handy! Having a monopod is an excellent backup of not being able to lug around a hefty tripod when you need some stability. With its adjustable leg and fluid head, it is a great reliable source on getting the stabilization you need. 

B&H Link: http://www.bhphotovideo.com/c/product/5535-REG/Manfrotto_680B_680B_Compact_Monopod_Black.html