By the time I moved out of my childhood home, I had lost the habit of carrying house keys around, since our door could be unlocked with a keypad. So naturally, when I moved out I quickly found myself locked out of my apartment. I had left the house without my keys, and my bf left later and locked up to go to work (he worked evenings back then). I got home and realized I was locked out. I had to go back downtown to my bf's office to get his keys. Haven't forgotten my keys once since then.