I side squarely with you on this one, I love finding little pockets of time to be efficiently completing work tasks. The more little tasks I can finish at random times means more free time for me to use outside of business hours.
This is also one of the things I have struggled with since moving to remote work though -- balancing work time with free time. Inevitably they just start blending together and it is hard to separate the two.
Remote work is a killer of efficiency and effectiveness in so many ways. I also think that it can affect opportunity heavily, if not connecting enough face to face with people. It is like having a "girlfriend in Canada" :D
Canada, ehh? Definitely looked over until too late!