I went to a local business advice service when I set up at the beginning of the year. As I'm a sole trader they recommended just a personal account in my name (I was originally thinking that I should open a business account).
This has saved me £7.50 per month which in my opinion is as good as a £7.50 monthly clean (without doing the work!). The downside is that cheques are written out to me rather than my business name, which you could perhaps argue lacks professionalism, but to be honest nobody has commented on this so far ...