- Migrate photos from iCloud to Google Photos
I'll start with:
- Spend 1 hour trying to migrate photos and write down where I left off
This avoids the issue of being unsatisfied at the end of the day because something didn't get done or something took longer than expected.
If something absolutely has to get done and cannot be time-boxed, I like to veer conservative and either start way earlier than necessary or devote a whole day or more to doing just that one thing (example: taxes - start early, work fire drill - drop everything until it's done).
That said, and perhaps this is outside your scope, what kills me is social media. I know #duh :) let me finish :) For example, I'll be stuck on something semi-pressing so I'll post it on SM. That leads to checking back for answers. Or having something to share to SM and not wanting to forget about it later so it becomes a now thing.
Ultimately, these things fail us (or us them?). I'm what-if'ing a couple of tweaks that might help just a little bit.
...but the problem I've always had with these types of systems is that there's always that one item on your to-do list which ends up more complicated than you expected: So at the end of the day you're stuck with either (1) redefining the scope of that one to-do list item so that you can enjoy your evening and browse the web or (2) sticking with the original scope of your todo item and then you don't get to enjoy your websites/evening, even if you've worked hard otherwise.
In this way, what was supposed to be a cut-and-dry, objective productivity metric unavoidably devolves into a subjective decision.