I qualify because on 12-Jul-2013 I found these five virtuals:
GC56E9 The London Rainbow Cache 7 - Violet
GC56E5 The London Rainbow Cache 5 - Blue
GC56E4 The London Rainbow Cache 4 - Green
GCE387 The Palace of Westminster (Houses of Parliament)
GC56E7 The London Rainbow Cache 6 - Indigo
I almost walked past as the old mans beard wasn't in its fluffy stage, but fortunately the wooden stem is very recognisable. Then I looked more closely and immediately saw the cache. Phew - from reading the previous logs I thought this one was going to be difficult.
I noticed that the geocaching note was on the ground. It wasn't all that wet but I debated whether to put it back in the cache - in the end I did.