Why Change Your Locks When You Move In?
If you've recently (or not so recently) moved into a new home and didn't change the locks, you could be setting yourself up for an unpleasant experience. A UK article, Spare Keys Undermine Home Security, notes that people often give away spare keys to friends and family but don't always bother to reclaim them when they move. If you move into a house that's had three owners and the locks have never been changed, imagine how many people might have keys to your home. It's even a good idea to change the locks when moving into a new apartment. It's not something landlords usually bother with, but the article notes, "Seven per cent of tenants do not return their spare keys when moving out, increasing the possibility that a stranger has access to your house."
Changing the locks is a simple DIY project that can be done in a day. Maybe it's time for a trip to the hardware store...