Isabelle and Joseph take a few classes as part of our home education. I found a place that offered a la carte style classes, as opposed to a hybrid style homeschool or a co-op. A hybrid does offer the convenience of a complete curriculum and a weekly day (or two) of classes, but the drawback is that you lose control and creativity of your own curriculum. A co-op offers classes, but parents must participate in each class so there is no free day to do errands.
I found a place that offers classes for whichever subject you would like to outsource, and parental involvment is shared around. I only needed to be there for 3-4 classes during the Semester.
Isabelle and Joseph both took a writing class. I have seen some really great progress in just one semester. In addition to writing Isabelle takes a drama class and an art class, while Joseph takes a guitar class and a drawing class.
Isabelle in writing class
Joseph in writing class
Guitar class
Art class
Drama Class
Drawing Class