London; accommodation blagging

It's my brother's wedding on Tuesday soI'll be ni the Berkshire/Buckhamshire area if anyone wants to meet up? I'm planning to go to London for a couple of days before hand. This will maybe be tonight but more likely tomorrow in time for the picnic on Clapham Common. (Semi open invite according to this post). Later on Saturday afternoon I plan to wander around Camden, and I'll be visiting the folks Sunday-Wednesday.

Can anyone offer accommodation for tonight and/or tomorrow? I realise it's short notice but it's a rather impulsive decision.

(I'll be glad when today is oever; it's been a grim week at work)