One overlooked, yet inexpensive item for every prepper is survival property duct tape. Yes, duct tape, the ubiquitous item you find at every hardware store, Walmart and Dollar General. The jokes about it are many, but the uses for it are equally numerous.
Duct tape is one of the most versatile items one can own, especially in a grid down situation. It can be used to fix small engines, appliances, hold down things in the wind, stop a leak on a water barrel, etc. There are hundreds of uses such as those listed here. But get plenty of it now while its readily available and inexpensive. In fact, purchase more of it than you need today because it could become a great bartering item when the U.S. Dollar collapses as it inevitably will.