> 1) When I already have a rough picture of the solution to some programming task in my head up front, I do not particularly look forward to actually going and doing it.

Every time I think I have a rough picture of some solution, there's always something in the implementation that proves me wrong. Then it's reading docs and figuring whatever gotchas I've stepped into. Or where I erred in understanding the specifications. If something is that repetitive, I refactor and try to make it simple.

> I have a restless mind and I just don't find doing something that interesting anymore once I have more or less mastered it.

If I've mastered something (And I don't believe I've done so for pretty much anything), the next step is always about eliminating the tedium of interacting with that thing. Like a code generator for some framework or adding special commands to your editor for faster interaction with a project.