The best advice that I learned from one of my advisors: look for a medium/big idea that's relatively easy to implement. There are plenty of those in B2B sector.

The best advice that I learned from one of my advisors: look for a medium/big idea that's relatively easy to implement. There are plenty of those in B2B sector. Why? Because it's as hard to get small amounts of money as it's to get medium amounts of money. And even relatively easy things can reveal interesting (and nasty) problems when you dive into them. If you don't have any insights what kind of problems companies have, do a couple of gigs for money and start to thing a product based on those.