Penny is still in her crate at night too. She settles in there happily and it saves the door-scratching in the morning. We never hear from her until we get up
If I have a visitor who doesn't do dogs I put her in with a kong or something similar, and occasionally she goes in for time out, but that hasn't been for a while.
These days, if I'm going out for a while I don't shut her in the crate any more, but I do shut her in the kitchen and make sure she has something absorbing to do - kong or similar. However, I don't ever leave her for more than a couple of hours and I make sure it's after exercise so she'll sleep.
I think a crate is a really good resource to have handy. I'll not be putting it away any time soon.