Setting up a cover file in InDesign

Just thought I would share the way I set up a book design file in InDesign. Maybe other designers do this too. If not, share if you have any time-saving tips.

1. Create a new file.
2. Make the width of the document size =trim size(back) + spine size + trim size(front).
3. Set columns to 2.
4. Column size should equal spine thickness (here, .5")
5. Set margins. I like to use .25" for the bottom elements (logos, barcode, etc.)
6. Left and right margins should be one-half the trim size (e.g. a 5.5" trim width, set margins to 2.75")
7. Set bleed.

File should now have guides for spine, and the center marks for both front and back covers.
Maybe this is obvious and everyone else does it that way too.