Is it good practice to log in and out of the site
Ice
Ice, I pretty much stay logged in all the time, because I have a browser tab open for all the sites I've been looking at (11 tabs at the moment lol), and its easier just to switch back over to here than to go through a logging in every time. I'm on a wireless network always-on connection here at the marina, behind a hardware firewalI, and I run Linux, so security isn't an overriding concern. Sometimes I'm out away from the boat for a few hours even, and "I" am still logged in. :)
I think it is just a matter of personal preference, whatever you'd like to do is fine. :)