Finding a few hours on the weekend to create posts for you web site can be a great way to deal with a busy week.
Wordpress allow you to schedule you posts to go up all week.
Sit down make a cup of tea think about the last week of you work. What questions did people ask, what did you learn new. Those are the kinds of things that will feed others in their quest for knowledge.
Help the world grow. Give back and you will receive.
Have a great day.