Essential items for Finland must include:
2. batteries for headtorch
3. spare batteries for headtorch
4. warm socks
5. really warm socks
6. heaters for warm socks (you know, like you get in ski boots)
7. warm gloves
8. really warm gloves
9. really BIG warm gloves
Failing all the above, just find a bloomin' good coffee shop.
How good? Well, that would be telling .....