Print your resume on professional resume paper. You can find this at your local office store. Unless you are in an art field, stick to white, off-white, or ivory. Go for paper around 24 lb in weight.
Be sure your printer will produce a quality printout. If your printer is not up to speed, use a friend’s or go to a local print shop.
When you buy your paper, don’t forget matching envelopes. You will need to mail some resumes and cover letters, so you want everything to coordinate.
If you are submitting documents electronically, send them as PDF files. This prevents formatting changes on different computers. Here is a free PDF creation program (print anything to a PDF file)