Here is a great description and tutorial on how to build a sawbuck for helping to cut large logs and reduce the energy spent in preparing wood for your wood burner.
http://survivalsherpa.wordpress.com/2013/11/06/building-a-sawbuck-work-smarter-in-the-woodpile/
This is a companion discussion topic for the original entry at https://peakprosperity.com/how-to-build-a-sawbuck/