Start looking for jobs early and prepare yourself and your portfolio for them,
Do something you love.
Develop your personal ideology and skills so that the skills and ideas from many projects could be used for one. e.g. Take inspiration from your dissertation to fund the creativity of your major project.
Oh, and get your dissertation done very early, with time for a re-write because most people i know, did just that!
Use the library resources, where else will you find that many books on a subject that you love?
When it comes to work experience, or internships, try and find summer, easter or even christmas placements with a company, who knows, when you leave they may want to take you on. If not it will be very valuable experience, and something employers will see and know you are keen!