One of those steps is something more projects could do to raise money. It’s printing stickers and creating shirts emblazoned with the project logo:
People donate because they want you to use their money to power up the project. So get proactive! Print stickers and other merch, cover costs associated with conference talks, and financially support people who make key contributions.
Putting stickers on your laptop is a tradition for developers, they show off what you support,which software and programming languages you use. I wouldn’t mind stickers for Ubuntu, Red Hat, LibreOffice or PostgreSQL on my laptop.
Swag-style t-shirts are also great. When I was tending the FSF (Free Software Foundation) booth at LinuxCon 2016, it was awesome to see people buying t-shirts.
When you need to fund your free/open source projects, consider Open Collective!