Homeschooling When Dad is Away

Our lives are changing rapidly.
Ever since my oldest was born I have stayed at home while my husband went to work. I've worked in various capacities (running a piano studio from the house and now blogging and writing music curriculum), but for the most part our routine and lives stayed the SAME.
Did I mention things are changing rapidly?
Now, my husband doesn't work a normal 8-5 job. He doesn't get up at the crack of dawn, go downtown to an office, and arrive home in time for dinner.
Some weeks he is traveling. Other weeks he is working from home. Right now I'm trying to remain flexible and patient.