I currently type ukc into my web browser address bar which suggests a few sites, one being Unread posts since last visit, which is what I select. I rarely visit the home page of the forum. When the Unread posts since last visit loads, I right click on the orange, new post link on the threads I am interested in and open them in a new tab, then close the tab once read. I close down all of them once read and then do that all again next time I look at the site, I often don't close the browser itself but that doesn't matter.
I have experienced what Bottlebank is on about, when you login and click 'unread posts since last visit' and then accidentally close the browser, then open and load up the site again, ( I don't logout) then click on Unread posts since last visit, which obviously only shows one or two posts as I last visited a few minutes earlier.
I think Bottlebanks problems will all be solved by using a show all unread posts.