I've had a lot of luck with blocking out a couple hours a day for "dedicated work time." You have to aggressively defend that time and reject requests where som

I've had a lot of luck with blocking out a couple hours a day for "dedicated work time." You have to aggressively defend that time and reject requests where someone carelessly double-books you anyway to be able to keep that time sacred. I've worked for places who wouldn't respect that and expected me to be "always available". Those places got the level of output from me that they deserved when I found myself unable to concentrate and would just be waiting for the next interruption.