5. Do you need a website?
YES! Absolutely. Even if you're not a web designer or web developer, make sure you have a portfolio online for agencies to view. Either get a friend to build one for you if you don't have the skill set, or use a template based website like Squarespace or Format or Cargo Collective. Having an online presence is the best way to expose your work and social share. Your business cards can be very simple and just include your brand, name, contact details and website URL. So if you bump into an agency fella or lady in the street or in a pub, you can give them a business card and you're done.
Make sure your website is nicely laid out and exposes the work you offer. Don't let the website over power your work, it's vital that the agency sees your work. Content is just as important as design so make sure you projects are given space and are big enough to be viewed ( on mobile, iPad and desktop ).