4* hotels at Heathrow are going for about $115 at SHeraton right now - not the deal they used to be!

If you have the time, visit any public leisure centre in or around London - if I have no arrival lounge access and have an afternoon appointment. I go to the closest public swimming pool/gym to where I need to be - take a swim, shower, leave my bags in the locker (assuming hand luggage only) and then pick them up again when I need to.

All for less than 10 bucks....