[Leonard] made a few modifications to the slide bolt so it can sit flush against the bus’s lock bar, then went to work attaching the keyless deadbolt. At 2.5″, the bus’s door is actually ...

A convenient alternative is an electronic lock: In the middle ground between traditional keyed locks and fully connected smart locks, these keyless locks ... locks the door behind you.

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Who needs house keys when you can open your front door with fingerprints or an app? This smart lock (now under $100) is worth every penny for easily letting you in and keeping others out.