One way to do it
I want to jump back to May, 2011 to reference my detailed food log.
Here's how I accomplished that:
I clicked back, month by month, until I got to that date and month.
Then, I bookmarked ("favorited") that page in the pull down menu.
Now after I sign in, I can just pull the bookmark menu down, click on that page which I put in the menu, and , voila!!! the May, 2011 page appears.
I hope this helps.