Whenever I write outside of school, it is for extracurriculars. I write several emails per week on average; however, most of my emails are short in length, anywhere from two to four sentences in length. Most emails I write are related to community service projects I help organize/run.
Another reason I write outside of school is for work. I write correspondence with my employer about my schedule several times a month. I also have to write tickets detailing purchases or service work that customers need at the shop. Most of this writing is in a list form and very trivial, but it helps keep my handwriting fresh while outside of school.