Have you ever wanted to make a poster and print it up as standard-sized sheets? There are various complicated ways to do it, but there's also a free software that makes it easy. PosteRazor takes your image, cuts it into pieces and saves as a multi-page .pdf which you can assemble into a poster.
I needed to make a sign announcing the Llano Fine Arts Guild and Gallery would be open Christmas Eve for last-minute shopping. I made an image that would fit on poster board (just outlines to save ink) and input it to PosteRazor. It gave me 9 letter-sized .pdfs that I printed and transferred onto poster board. Then I painted it and got my sign!