Open Office Hours

I like the 'open office hours' idea expounded here. Apparently instituted by Marissa Mayer whilst at Google, she cleared an hour and a half of her diary at the end of each day and staff could reserve a chunk of that time by putting their name on a board outside her office. This enabled her to reportedly fit a large number of very short meetings into a block of time where staff could come and talk to her about anything. Meetings which apparently surfaced interesting product ideas including Google News. A better option perhaps than filling too much time up with the half hour/one hour blocks that managers tend to segment their calendars into, or to keeping an entirely open door policy which might lead to overly frequent interruption.