I find windowsills rather challenging even though I'm sure they shouldn't be. I often wish I didn't have them so I wouldn't have to think about what to put on them. I have been scouring sites and magazines looking for inspiration but have discovered that windowsills receive very little attention.
I am prone to taking on too much. This means I tend to have lots of unfinished projects around me. But I have discovered that there is nothing like a looming deadline to persuade me to get my act together.