I think I can help- When you sign in,,, click the small box under the login name and password that says STAY LOGGED IN. that will keep you logged in until you click on the LOG OUT button. I typically just stay logged in because I'm the only one using my computer so I know no one else is going to get on here.
If you are on a shared computer, just remember to click LOG OFF when you are done.
Hope this helps
X2 that is what I do also you won't get cut off but if you share a 'Puterdo make sure you log out