Ella and Michelle, on the SS, there are a couple of ways to do it, you can click on the plus for a new sheet (tab), but you have to redo all the formatting!
What I did is, if you look at the tab for the current year there is a little triangle next to the name.
-- Click on it and you get a drop down menu,
-- select "duplicate." This give you a copy of this year's sheet.
-- select all your data and click your delete key, that will remove everything that you entered but leave your formatting. If you hand colored any cells you will need to go back and turn them white again, just select the white background color while you still have everything selected. You will then need to recolor the insulin units columns, but that is easier than finding all the hand colored cells and redoing them. . .
-- Now go back to the tab for this new sheet, click the triangle again and select "rename"
-- On January 1st, click on the 2012 SS tab, hold it and drag it all the way to the left, then it will become the default and be the sheet that opens when someone clicks on your link or when you open it.
-- I just did all that and decided to make life easy next year and made a copy of this new blank SS and called it "SS template" so in the future I can just duplicate that and not do all the deleting and cell color fixing. . . .