The Chrome Web Store is a website where you can find web applications for the Google Chrome web-browser. Sometimes these are just links to webpage that work maybe just as well in IE or Firefox and other times they are plugins for the Chrome browser. There are a variety of applications from business tool, educational and game. There are even applications to edit photos, audio file and movies.
Open up the Chrome Web Store in the Google Chrome web-browser and search for “days til christmas”. The first application on top is “Dats ’til Christmas“. Click “ADD TO CHROME”. The application will appear in you new tab page. Have fun with it.