Somebody convince me I'm wrong.
There is no reason to display "100%" in your UI for more than a single second. Either show 99% and then finish, or show 100% only when you are ACTUALLY done and only show it for a little.
If you're still doing ANYTHING AT ALL don't say you're 100% complete. How is it still like this
It works a bit better if you put a little bit of wood glue on the tip of each toothpick before driving it into the hole. Definitely a great trick!