A classic hiding spot, but one that can still be useful is the false bottom. All you should do is cut a one-fourth inch piece of plywood one-sixteenth of an inch shorter than the drawer opening. Now, put it on some wood strips that you’ve hot-glued to the bottom.
Hot glue another item to the top of the false bottom to make a handle, which you can easily grab and lift to reveal the secret goodies that you wanted to keep protected. Use wood that is the same color and type as the drawer.
A Colorful Stash Spot
If you're someone who likes to give rooms a fresh color every once in a while, you've probably thrown out your fair share of paint cans. Next time, save one of them, clean it out, and keep it with the others that still have paint in them. Don't forget to put the lid back in place!
Stacked among all the others, it's a one-in-a-hundred chance of finding the right one, even if they think to look inside. Want to keep something REALLY safe? Put your things in a sealed plastic bag inside a can that still has paint in it!
Use Some Fake Plumbing Pipes
We all have some white PVC pipes sticking through walls SOMEWHERE in our homes, especially in crawl spaces or utility rooms. It's pretty cheap to go to the hardware store, pick up a few pipes and a cleanout plug (which you can open), and attach them to the wall in a manner you find easiest. Glue, probably. Then, use the cleanout plug as a handy hiding spot that will never get wet.
The people looking for your stuff won't even think about opening it! Make sure this one doesn't stand out and that plumber knows there's nothing wrong with it.
A Sneaky Sporty Hiding Place
Even if you don't play tennis or have a dog, we wouldn't be surprised if you have a tennis ball or two at home somewhere. As long as you're willing to sacrifice one, you can use a knife to cut one open and remove the guts. You suddenly have a hiding spot that will take a moment to suss out.
We don't recommend putting really valuable things in here, since it could be easy to tell it isn't a normal tennis ball. Also, make sure this one doesn't hang out in the garage with the other balls to avoid confusion.
Behind a Drawer
Frequently, drawers don't go all the way back to the edge of the cabinet. There's space between the back of the drawer and the wall, or wood, or whatever. It's easy enough to take an envelope and some tape and attach a couple of big bills or some really important documents where nobody would think to look – deep inside a kitchen cabinet.
You could also do this in the bathroom, the office, the bedroom, or anywhere that has drawers to pull out. This might be one of the easiest spots on the list!