Start early! Think of more than one idea or topic that you are interested in case your first idea wont work. Also make sure to follow the guidelines and create many questions that will give you numerical data. Don't blow off your test run of the survey. Find people who will give you proper feedback so that you can accurate revise your survey in order to receive the best results possible from your sample group.
Utilize online survey websites and use email to contact your subjects. Keeping things online helps keep them organized. Paper surveys can be lost or damaged. People also tend to check their email more frequently than their mailbox.
The calculations take a while, so do not leave them for the day before. Make sure to double check your work or have your partner look it over in case you missed anything. Also, work with a partner.