What Drives You to Build Software?

Do you spend dedicated time brainstorming ideas to work on? Or do you just wait for inspiration to strike and then work on whatever is the most exciting? I've got a Trello board actually that whenever I hit a pain point or something that I think that would be a cool thing to work on, I come and add a card into my Trello board that has that idea in it. And so the more times I have that thought, the more likely is that that's actually a good problem to try and solve.