Vault Locks 3200 Key Storage Lock Box with Set Your Own Combination by MFS Supply

I live in an apartment complex where the lost key fee is $100, plus all the associated hassle. This is sturdy and weatherproof and I have peace of mind that if I ever lose my keys or forget them at home, I'll have a spare. This is far more secure than using the whole, hide the key under the door mat type of thing. Plus if you live in the city or an apartment building, this is a necessity. Some others in the building also do this. The storage boxes are locked next to a grated window, so its not in anyone's way.