If I recall, CMT is also sold at Menards??  I use the citrus degreaser to clean blades and bits as well if I'm out of CMT.  I never noticed the "do not rinse" part of the instructions.  Of course, that's probably because I didn't read them.  

Boeshield Rust Free and Blade and bit are decent as well, but more expensive.  I like Boeshield Rust and Corrosion for anything that squeaks.

Bostik Glidecote is really good for cast iron surfaces.  It seems to hold up better than paste wax.