In the situation you're in, a good question to ask might be what skills you have that people would be prepared to pay for. An obvious example would be hairdressing - I know plenty that work from home - if you're that good people won't mind coming to see you, and you won't be short of work.

If writing is your thing, you could find that local voluntary groups could use some help with getting the documents they need to complete - proposals, reports - and you could charge a small fee. Your local CVS (Council for Voluntary Service) might have an idea about whether there's a demand in your area for this kind of service. Again, you can do most of what you need to do in front of your PC at home.

All this presumes you don't want to spend money learning a skill that you might then seek to profit from - but that is also an alternative worth considering - speculate to accumulate and all that.

Just a few ideas.