A while ago, I used to make graphs for my worksheets in a way that, at the time, seemed reasonable. Hah! and Double Hah! I have seen the light. I don't know where I heard about this technique, but I am using it now, and just today, I enhanced it to be easier for me.
Here is a finished graph that took about 4 minutes to make from a blank space:
I like this process because I can never seem to find my old "made" graphs, and if I do, they are never the right size.
Also, I used to make a similar grid using "tables", but then I would go and insert shapes with textboxes to do the scale. Tedious. I just realized today how I could do it all with tables. Viva la tables!
Here are instructions in case you are in need of graphs.