Thought I'd just bring it to people's attention since it's something I don't think a lot of people realise. You can get free prescriptions on the NHS with a thyroid condition (medical exemption). You can ask your doc or pharmacist for a form.
It's for all prescriptions, not just thyroid ones, so comes in super handy if you're needing to take multiple supplements or anything. It saves me a bunch of money on vitamins and antibiotics!