If you are looking for a way to hide a key outside, a pill bottle makes a great weather-proof container. With a rock to disguise the top, you can tuck it into a rock garden or partially bury it to hide its location.
I did not know this! Outdoor use. flies HATE pine-sol. Mix it with water, about 50/50 and put it in a spray bottle. Use to wipe counters or spray on the porch and patio table and furniture Drive them away!