"Build a visual library" is one of the most valuable design tips I've ever head. Great designers don't try to think up cool ideas out of nowhere, they spend a lot of time browsing works of others, and creating a library of patterns in their head. By using and recombining those patterns/tropes they create new ideas.
I should do the same thing with startups and SaaS tools. Put more effort into browsing and analyzing successful projects to build a library of ideas I can make my own stuff out of.