As mentioned, the problem faced by to-do list creatives is that we cannot afford to integrate Graham's long stretches of uninterrupted work into our schedules. (Though we might want to dedicate a full day to one project, our bosses might disagree.) With this in mind, the GCTD system attempts to replicate the two benefits of uninterrupted work, as described above, in a more realistic, logistics-respecting workday structure.
This is definitely something I've been struggling with lately, and a look at my work calendar quite clearly shows why. Back to back meetings, or meetings with just half an hour or so in between them. I attempted to follow the advice in the article and block out some creative/thinking time, and found 2.5 free hours back to back in 10 days time. I decided this wasn't good enough, so have found 2 hours next Monday morning. The problem is that mornings aren't my best thinking time, so I'm shoe-horning my thinking time into the free slots in my calendar rather than at my peak thinking and creative time. Along with my email addiction experiment I need to manage my calendar better.
Another commitment: I will own my calendar and rearrange meetings into my least creative/productive times rather than just accepting what other people impose upon me.