This may be the single most important piece of advice you get from this website. 

Laugh if you want but this sign saved my neck (and the rest of my body) many times. 

They drive on the bloody wrong side of the road in England. 

Which means that every time you cross the dang street the dang cars are coming from the exact opposite direction you're expecting. 

These signs remind you which way to look.

Thank you to local British city councils who make sure these signs are painted on the streets used frequently by tourists from countries where we drive on the correct side of the road.

If you walk into a pub and take a seat, the waitstaff will smile at you pleasantly but not even consider approaching your table. That's because pubs are self serve.

Two weeks. Few ways to easily do laundry. The possibility of constant rain. Of cold. Of working up a sweat while biking and hiking. Clothes to look decent in at decent restaurants, should we choose such a path. Shoes that can get wet. That can soothe and protect while walking eight hours or so a day. Clothes to layer so we can add or subtract easily. 

All in one bag that isn't too big to carry on as who wants to be slowed down at baggage claims.Here are all the clothes I took. Plus the ones I was wearing. They turned out to be almost perfect. What we learned from the not perfect clothes we will change for next year. We're smart like that.