From a handgun-storage guide published on Guns.com in May. The firearms manufacturer Beretta, originally cited as a collaborator, retracted its affiliation with the guide soon after it appeared.
Your laundry hamper offers a lot of storage potential, as thieves are usually not interested in your soiled clothes.
The tank of the toilet is a viable backup option — just make sure the handgun is double- (or triple-) wrapped.
One high-concealment, low-cost method is to hang the gun off a plastic hanger through the trigger guard (for semiautos I advise against storing with a round in the chamber). Cover with a button-up shirt and jacket, pants, and tie (leave the dress shirt partially unbuttoned so that you can reach in and grab your pistol). Alternative methods could be sewing quick-entry pockets on some old jeans that can be accessed while the pants hang.
Drywall work presents the opportunity to hide a handgun before sealing up any holes. Cut out a section in a place where guests or family are not likely to touch or lean. Mount your weapon and glue the old drywall back in place. To retrieve the gun, just put your fist through the patch and grab.
For those with heavier security concerns, less contact with visitors and children, and storm doors, a gun can be secured around the doorknob. When opening the door to someone, invite them in but leave the main door open against the wall, hiding your pistol from the room.
If you are worried about malfunctions due to frozen ammo, use the fridge. For more discretion, wrap the gun loosely in tinfoil (not in the shape of the gun) and date/label the bag.
Those grocery bags collecting under the sink can make for a great subterfuge storage area. The same method works with the empty pizza boxes by your trash can — just make sure nobody takes out your gun with the garbage.