Cohost seems to love to log me out, and when someone links me to a blog I want to follow, I often have to do the following steps to actually follow it:
1. Visit the blog
2. Click "login"
3. Log in
4. Go back in my browser history to view the blog I was at
5. Reload the page to now be logged in
It'd be nice if steps 4 and 5 were handled automatically, by adding (for example) a redirect parameter to the login form that goes back to the URL from which the login started.