New sitter, must-haves to pack?

[Smiley]

This might help - previous question similar to yours:

Tips for travelling light(er) between sits with food supplies

I need some sage advice please from well seasoned international sitters with no car who can successfully travel light from sit to sit with cooking & grocery supplies. We will be sitting full time in the UK from November to March. We won’t have a car and will be relying on public transport everywhere we go. We will each have a medium size suitcase, a small back pack and a CPAP machine in a small bag. We want our suitcase weight to be under 15kg each for clothes, toileteries and any foods, so it’…