Build Something People Want
A while back I said "just build something”. That was a bit of a lie. You need to build something people want. Don’t be the one who builds something s/he thinks people want. Make sure. Do you want it? Are you building it for someone who will use it immediately? Do you work somewhere that could use it if it existed? Do some basic market research. If you build something people want, then you’re already on your way to success.
[From my blog.]