Print with blank first page? I frequently have to print a 3-page document.  Wanting to save paper, I print it 2-to-a-page, double-sided.  So I end up with the front having "1 | 2", and the back having "3 |  ".

It'd be more convenient if the front had " | 1", and the back had "2 | 3".  Is there a way to have Mac OS X printing insert a blank page at the start when printing?
Hmmm probably not the way you want it. You don't mention what are you trying to print (Word? Pages? TextEdit?), If you use Pages, for example,  you could create a template that inserts a page break in the 1st page (at the beginning), so your real 1st page would be the 2nd page. Then use that template as your "blank document". 

I know, simple solution but works ;)

UPDATE Since you need to usually add a blank page to a PDF, you can use preview for that. Position yourself in the first page and do an: 

Edit -> Insert Blank Page