In the course of my travels, I have used spare room exchanges where you contact the organisation telling them where you need a room, how long for, and what it costs. They check and regulate the hosts to ensure that you don't stay with crazy people. I've not ever heard of a service like this in England - though it has always worked out well for me, and I have met some great hosts along the way.
Are there any such organisations or websites in the UK? If not, do you think one would be well received.
Provided vetting was done correctly, and strict checks were in place, this could be a really safe way for women to travel alone. What do you think?