Sharp rotary blades and the Easy Square Jr.
http://www.createforless.com/Wrights.../pid67797.aspx It works so nicely for squaring up small blocks.
And I wish I could afford to change my rotary blade every day. It makes all the difference to cut with something sharp and effortless. I want it to cut through like soft "buttah." Through six layers! Is that asking too much?!