It's not a case of what can I do to make money... it's what am I good at that people would need?
There's an endless list of things you can do... if you're having a little trouble try...
http://www.entrepreneur.com/businessideas/index.html
Develop your idea... example - if you want to sell sporting goods.
What makes you different? change it round a little... offer football lessons to kids once there parents buy something.
Got to a field and have a kick around with them for an hour... if you're not fit enough or cannot do that pay a family member or friend £20 to go and kick a ball around for 60mins.
It's all about the niche in the market... there might be a million companys that are just like yours but you need to think. How can I improve this without denting my profits in such a huge way?
I hope this makes sense, if you need further help or would like to discuss more possible business ideas send me a private message.
Regards,
Chris