Congratulations! Out of interest, what would you say you've done differently this year?
Last year I underestimated just how competitive the application stage is. I have lots of work experience (being a mature student) and strong academics, which I thought would get me to interviews. My application answers just weren't very persuasive of what I can offer or why I was wanting to work with the firms I was applying to.
So I don't have any groundbreaking advice. You just need to be really clear about what the firm you are applying to wants to see from you, and find a way of tailoring your experiences to show that you can bring those things to the table.
Also, I would definitely suggest having other people check over your application before you submit it. I have a couple of friends (just fellow students, not recruiters) who looked over mine and gave suggestions/feedback. That really helps!