sums it up nicely
Man I feel this all the time. I can't count the number of times I'm talking to my boss about something and I think "oh yeah, should be easy" and something will trip me up for a day
Yep, and the the more you work on it, the more issues and problems you run into that you need to figure out.
Not to mention the more things you see that you try to get fancy on. Which ends up taking even more time/effort, because you can't let it beat you.