I do, mainly because I am lazy.
DH always turns the one in our bedroom off, which is a pain for me because I usually put her to bed and have to remember to turn the thing back on.
I always leave the downstairs on one, which is oh so entertaining. I think DH had a 10 minute conversation with F tonight on whether or not she was wet or sorta wet. High-larious.
Re: Do you leave the monitor on all the time?
no. we only have one, in our bedroom, and i only turn it on after she goes to bed.
No. We turn it on only after he goes to bed at night and turn it off when he wakes in the morning.
Honestly we don't use one. We do right now, living with my parents because their house is too big and well insulated to hear otherwise. In our last house and our next one we won't likely use one. I am a light sleeper and can hear any sounds in our house.
Pics by Fleurish Imagery