It dawned on me after Nanny #1 left us that I didn't ask her to return our house keys. I decided that there was really no point to it as (a) she was in our house everyday alone and could have taken something if she wanted to; and (b) she could always copy the keys. We have no reason to distrust her.
But, now I'm thinking about an upcoming vacation and feel a little weird about someone else technically having carte blanche to our house. Would you change the locks? That can be be pretty pricey, and maybe not necessary. Can't decide.
Re: Getting keys from former nanny?
Someone else mentioned a keyless entry, so I think I will look into that and see how much it costs.
We're going to Charlottesville, VA...I went to UVA and want to show DH around as he has never been there.
If you do opt to change the locks, I would consider the locks that you rekey yourself.
https://www.kwikset.com/SmartSecurity/Re-Key-Technology.aspx
If you have to give a key to a repairman for a day, you can just rekey. And in your situation, such as if you get a new nanny, you'd be prepared for the future.
They are pretty genius. You can buy just deadbolts, or whole sets (handles, locks, etc.), so you can spend $25-$130 per door, depending on what you need. But if you can install yourself, $30 a door isn't a bad price for peace of mind.