[Sizzler]

I thought London was doing away with the double-decker buses, at least as part of their public transit system. Should be able to ride one as part of a tour group.

No tipping in London. You get your bill, you pay that amount, nothing more.

Canal zone is a nice walk in a nice residential neighborhood.

I didn't look up which tube station you're closest to, but some are better than others...some seem to always require a transfer to another line. I remember the Kensington stop near the V&A museum was one of the good stops to stay near, plus it was close to a very nice part of town (Lambo dealer right around the block, Morgan dealer tucked away down a nearby alley, pristine XKE's parked on the street...).

We took a train out to Bath, that was interesting. Don't really know you or what interests you. Personally, I skipped the tube and taxis and just walked around London, from Harrods to Selfridges. Your wife might like the Liberty store. Kew Gardens was nice, took a train out and a boat on the Thames back. Hampton Court was another nice tour, took a surprising amount of time to see, and again, was able to come back on the river...river travel really depends on the time of the year and/or weather. There is an incredible amount of new building/architecture along the river.

Greenwich was an interesting time, but again, it depends on the season since a lot of that was just being outside, though the clock museum was cool...

Eat Pasties in Windsor (downtown). Explore. Have fun.