I had a branding and marketing agency in Yorkshire (between Leeds and Huddersfield) for 13 years before winding it down last August. It got to the stage where the overheads were so big that we had to turn over a ridiculous amount of money each month just to break even, and I spent most of my time commuting between Wales and Leeds and dealing with staff and management issues, rather than doing what I enjoy.
I'm now working on my own, from home, with a small network of freelance designers, web developers and PR people. I managed to retain a handful of the old clients and am much much happier these days. I do anything from campaign planning and strategy, through to delivering campaigns through all media - print, online, above the line, social media management, mobile apps - anything that helps brands to grow basically.
Just realised that this has turned in to a completely different thread altogether so I'll shut up now!