Only 1 More Day!

I leave for London tomorrow! I can't believe it! I'm trying to pack light but not forget anything. I'm feeling a little anxious about everything I have to do when I get there. Once we land we have to go through customs, get our bags, get some money exchanged, and pay for/ get on the tube (blue Picadilly line to Gloucester). I hope everything goes well with no major hiccups! I'll post when I get there. My adventures are about to begin!