If you have a specific homepage setup, like I’m used to with Firefox, then you might have a Homepage set to one but your start page set to another location. This way I have one page displayed when the browser starts but my web homepage is available when I press Alt+D key combination. I find it practical.
To do this in Google Chrome do the following. In options, set the Home page to the location you wish to access by clicking the Home button in the toolbar or using an Alt+D combination.
Set the “On startup” to ‘open the following pages’ and add “chrome://newtab/” as the location.
This way, when Chrome starts, it will display the New Tab page, with all the goodies like most visited pages, search engines, and what not. But, your original home page will still be available on Alt+D.