It's virtually impossible for me to lose my keys - I have one set sewn on a tether inside my purse, and another one similarly attached to the inside of my university knapsack.
What's more, my house locks are all of the deadbolt type so I have to lock them from the outside, with the key, when going out.
What's more, my house locks are all of the deadbolt type so I have to lock them from the outside, with the key, when going out.