Sorry, I was a bit cryptic there. What I meant to say was to look at what COULD be done when it was raining and add that to your offerings. That means that whatever the weather you could shuffle stuff around and still work.
When you go self-employed you ALWAYS worry about not getting any work. The way I cover it is by having a broader scope so I can hit more opportunities.
I should also say that I don't worry too much. If you worry about it loads then it may not be for you - no point having a shoite time just to be self-employed...
...summat always turns up (my motto), but that doesn't always work and some people can't live like that.
I would test the market a bit - ask around - hello Mr Smith, if I was available to do (insert whatever) would you be interested sort of thing. Think about prices - they'll ask. If most people say fook off then review the plan...but if a lot say yes you could be onto a winner