Cartesian plane software

Hey /sci/.

Anybody have any good recommendations for grid software?

Just something that's able to make cartesian planes competently with uniformly sized cells would be nice. If it looks professional, that's a plus too.

Thanks in advance.

Maybe this one:
Graph Paper Printer 4.21
http://downloads.zdnet.co.uk/0,1000000375,39296973s,00.htm

Wait, I don't get it.

Why doesn't MS Paint suffice?