What an amazing experience this will be, Jane! I'm not the best person to offer advice on travelling light, but do suggest taking a look at Angie's wardrobe capsule post on the blog. It may be a good way to identify your wardrobe needs on the road. I also wonder if at least one dressy outfit may be a good idea. I know so many of our European forum members have talked about the higher bar for casual in their neck of the woods, and wonder if some of your day trips into major cities couldn't benefit from a very small capsule to address that possibility. Obviously you'll have a hard labour capsule too (great idea, btw)!
All and all, best of luck preparing for this exciting adventure!

That is really exciting.

Will you be away for the whole year? Or will your trip bring you back into the UK? A scheduled home stop may allow for you to drop off the summer wardrobe and pick up the knits and winter coats before heading back on the road.

I'm not sure how long we'll be away all at once - I don't think John wants to ever come back but a scheduled home stop/wardrobe refresh sounds like a great idea to me.

I'm now wondering what to do with my existing clothes that will be surplus - should I store or should I sell/donate them? Decisions decisions!