Self education expenses, professional reading material and journals, and associated costs (eg internet, home office depreciation, stationery, travel associated with study related to your source of income, include postage and telephone expenses if any of this is through a remote institution).

Home office depreciation, lighting, heating, cooling, internet & phone line, stationery for work done from home.

Mobile phone expenses if you are required to be available/on duty after hours but are not supplied with a work phone.

Union dues, membership in professional associations.

Any travel you have done in your own vehicle on work time/attending events relating to work.