is it that easy ? I mean, building something is one thing, but attracting new clients and making them pay every month requires "A good idea which people are in

is it that easy ? I mean, building something is one thing, but attracting new clients and making them pay every month requires "A good idea which people are in need of" AND "Good marketing skills to spread the word around". Don't get me wrong, I am almost at the same page as of OP (though i am working as a dev but working on legacy technologies) and I also want to get out of it and move to some better opportunity but now i feel so rusted. I have been trying to keep up with technologies by reading about them but to prove that I know them, I need some thing to buiild on it and for that i need an idea too :(