[TxMt] Anyway to Trick Textmate to Print Double spaced?

[Colin Gregory Palmer]

Hello,

I use textmate a lot to write in markdown.  However, the documents I  
produce need to be printed out and proofread often.  Is there any way  
to get textmate to print out documents double spaced?  If not, I  
preview the documents in firefox on OS X.  Is there any way to get  
firefox to print double spaced?

Thank you for your time,

-Colin Palmer