Some recommendations on the "what, why, where, how" of making caches. What You Need to Know About Survival Caches - The Organic Prepper You may disagree with the idea of caches... I'm in favor of them. The author offers a very good (IMO) suggestion on how to remember and relocate your cache(s). Take family/group pictures at the location and save them as simple memorabilia. No need for maps and/or GPS coordinates which might give away their purpose.