When I first started working with (almost) full-time childcare, I felt a certain sense of obligation to work 9-5, sat at my desk, getting shit done. I felt like it was irresponsible to do anything else because I paid for childcare and that is what I would have done if I was employed by an employer. Slowly, I realised 2 things a) I don't work in an office with a boss breathing down my neck and b) I am not particularly suited to that kind of structure. My work and my life call for a more fluid approach to time. Sometimes, through the night work is called for, at others, a day off nursing little sickies is my occupation. Once I realised that it wasn't about the time I worked, but what I got done that was important, a new, more natural rhythm arrived. 
With 3 small people around, there is no question that things change quickly, but on the whole I follow the same sort of pattern each day. Always having been an early riser, its not uncommon for me to be at my desk from 4 or 5am - it gets earlier as the days get lighter. I spend the few precious hours (if I am lucky) before the kids wake up answering emails and doing any writing I need. From about 7am until Ellis catches the bus at 8:30 - its a mad race of endless rounds of toast, finding socks, wrangling the smallest one into any clothes at all, walking the dog, letting the chickens out and general craziness. Once the house is quiet - either the little ones at nursery or in the care of Dalia, the German student who has been living with us since September, I head over to the studio for a morning of work. This is my most productive time of day and I use it for working on my top priorities - grading patterns, writing blog posts, editing and working on Blogtacular. Our rural internet is on the slow side, but its best in the morning, so I try to keep this for computer time. I work until lunch, when I head back over to the house for a bit to do laundry, eat and take the dog for a walk down the road. 
I tend to keep the time after lunch for creative work. Even now, in my deadline free days, I ensure that I always have something to make. At the moment, I have prioritised knitting things from other designer's patterns - both to give myself a much needed rest and to learn from others. Not having made many garments before writing Crochet at Play and then having to design them was a challenge. So far, its been a good learning experience, as well as an eye opening one (if I ever write "Work to correspond to left front, reversing all shaping and placement of pattern stitches" in a pattern, you have permission to kick me). It all has the added bonus of watching some good telly while I am legitimately working. Late afternoons and evenings are for the kids and after the walks and dinner and homework, I tend to edit and upload photos, so they can go into client dropboxes over night. 
And while this is the rough schedule, I also am trying to be gentle with myself after the stress of the last few months. If words aren't flowing (and there isn't something I HAVE to do that day), I don't push it. I know that things will get done and I will be working over time again soon (with the final manuscript proof for book 2 arriving to coincide with the Easter Holidays and exactly 1 month before Blogtacular, for example).
(photo is of the puerperium cardigan. Made in Bowland Dk in Damselfly by Eden Cottage Yarns. Photographed on the piece of rotten roof that was leaking water into the kitchen and causing everyone to get a shock when they turned on the light. It is pretty though, hey?)