Like everyone else, the most difficult part to accomplish to get into a peaceful and focused mental state of mind is related to distractions from colleagues, emails, phone calls,... and poor management. It is quite difficult in the first place to get into it but so easy to fall out of it. I am wondering what everyone else is using, in terms of practical tips, to block those distractions besides the typical "I will stay a couple of hours after work when no one is around."

Cheers.