I'm going to give up a secret winner of mine that I do to help benefit others. However, I will be very upset if any of you use it against me one day if we're both applying to the same job!
As I work in IT, I have a QR code on my resume. It directs to my name, e-mail, phone #.
People love it, think it is extremely awesome and innovative.
I'm bad at telling people what to do in interviews, but I can also help answer questions as I'm one of those "natural interviewees." I always nail interviews, am never nervous and never get stumped by a question.
The only advice I can think off the top of my head is, when that question comes up about having weaknesses, a good answer that's always worked for me is "sometimes I try to take on too much work having an initiative personality, that it makes me lose focus on minor projects and overwork myself." You can of course always rebut stating how you're correcting that though (Don't use that line unless you're actually a hard worker and do do a lot at every job).