It was a running joke that if you couldn't find something in our house it was because I had taken it into school. Oh yes!!!
Pens, pencils and stickers as rewards for something separate from the school merit marks system.
Folders to sort resources in a way that makes my life easier.
Whiteboard markers in the colours that I like. School bought black, blue, red... I have purple, green, orange, yellow!
Laminating pouches, card and paper for my displays. There are NEVER enough available in school. This also means that what I made I took with me when I changed schools.
Random objects as needed for maths, topics, science or DT such as foil, bowls, material, cardboard boxes...
Lots of non-fiction books for science and topic work, all acquired 2nd hand and with my name on a sticker on the cover. They go into school as needed and come home again for safe keeping.
Lots of poetry books and story books, etc. I borrow lots of these from my own DC's bookshelves, but they have their own name stickers on. Maths stories are a current phase of collecting.
What I don't buy is consumables for the pupils.