I am going to the UK (England, Scotland, Wales, and Ireland) in May for 16 days; leaving in the beginning of May. I have never been across the pond before and do not really know how to dress besides to prepare for rain. Any advice on what to wear and shoes to bring? Would like to bring just one pair of multi-functional shoes with me (perhaps uggs?). The tour I am going on is both coach bus and walking. Also, should I plan on a light weight rain jacket or something heavier? I am trying to bring mix-and-match clothes. Any advice would be greatly appreciated! Thanks!