and market stalls can be good as a extra .. & I do them at times my self  when I want to clear stock ..  but I still have to take into account ..

1  the stall cost

2  stock insurance

3 market insurance (public liability) 

4 petrol

5 GST

6 stock

7 wages 

when I had a real shop I had to make $12,000-$15,000 per month to cover out goings .. which at times was stressfull .. but with ebay I do not have tthat stress & only pay per sale .. all business bank accounts have fee's .. personal bank accounts do not