i have never been great with keyboard shortcuts even though i have a computing degree. however i recently by accident discovered a cracker. if like me your eyes are getting a bit past their best and find reading websites a bit hit or miss its easy to enlarge the whole page.. its simple just hold down the CTRL key and use the scroll wheel on your mouse to expand/reduce the page.
i know a lot of you will already know this but as i said i'm not great with keyboard shortcuts..
so my smile of the day is being able to read the fine txt again without my glasses on