Two different jobs, a happier me?

Even though I enjoy my job as an editor at a publishing house, I sometimes miss the days when I first moved to England and worked as sales assistant. The two things I miss the most are the social side of the job (you can chat to your colleagues and work at the same time, and chatting to costumers is part of your job), and the fact that, no matter how hard my day was, it ended at a fixed time (We're closing in ten minutes, sorry!), I could never take work home, and so, very rarely would I worry about it when I wasn't there. Because I can take my proofs home and do an extra bit of work, I think I should, and I'm continously worrying about work. Of course, I get a lot of satisfaction from what I do, and I also remember that dealing with customers in the shop was sometimes hard and very frustrating.
None of the two jobs are perfect but, what if I could have smaller doses of the two? Holly, from Decor8 linked to this article in her blog. The author, a freelance writer and journalist, also works as a part-time sales assistant. I have already talked about a portfolio career, and I think this could be part of it. Off to print my CV!