Despite the rise of digital media in recent years, print has become an even more effective marketing tool than ever before. Potential customers are much happier to receive 'real post' these days and value the feel of a new brochure.
You could use print to:
Create a printed brochure that you give to potential clients and customers
Build a mailing campaign that sees your materials posted directly to clients and customers
Produce a periodic newsletter or factsheet that keeps people up to date with your business