Maybe you can start by spending about 10% of your monthly salary and start build some site that sell your goods or sell your service. As people interest on your project, they will contact you anytime
That's a quite nice idea if someone has the income for starting, and it would be great if the person himself knows web designing or making websites then he can save some of his money, he should make his website his own and start working on it, he should make his own concept if what he should do on his website that should attract more and more people towards it, after his website gets some success then he will be earning a good profit.