Brilliant weather after seven consecutive days of grey skies and/or rain: Great

Getting to go roller-skating for free while Zero 7 DJ courtesy of the Nokia Skate Almighty at the South Bank and realising I haven't lost too much of my rollerblading knowledge: Awesome

Spending most of the day just walking around London and skating with person I've been missing: Priceless

It's been one of the best days I've had in London so far (and I've had quite a few) and the feeling is just indescribable.