Conferences are about meeting people and showing off your research. But the meeting people portion of the conference usually lasts a lot longer than the actual poster presentation session. Conferences being busy places, people may forget to come to your particular poster session.
Invite them to your poster.
Almost any office supply shop sells business card paper that can be run through a standard desktop printer. Spend the extra cash to get good ones that separate with clean edges. The packages will often give you the specific information for a template in Office that you can use for laying out the cards. If you put in a little bit of time, you’ll be able to get results that will be nearly indistinguishable from your institution’s professional printing. Click to enlarge the picture of the two cards below. One was done by my university’s in-house service; one I did at with my office computer and inkjet. (Sorry, no prizes for guessing which is which.)
Do one side with your normal contact information, like your name, affiliation, email address and so forth. Then, flip it over and on the back, print an invitation to come to your poster, with the title, time, and poster board number. It serves as a reminder during the conference, and helps people to get back in touch with you after the conference.