Paint will work, size it to fit one page and draw it bigger than you need it. I do it all the time. In the page settings select fit to 1 page x 1 page. center center and set your margins to as small as possible. It will corect one margin to .46 I think. My margins will only go down to .25 ..
Other than that MS draw, Correl Draw, and some others are out there that are free for a basic version.