Originally Posted by stevage

Thanks Machka - I had actually read your post, but didn't realise it was you So in the end I'm going to suck it up and just pay the extortionate 25 pounds that the left luggage place charges at Heathrow. They conveniently will arrange a box for pick up at any terminal you nominate.

I couldn't find any other option at all, really, and your experience of shuttling back and forth sounded pretty awful - so I'd like to thank you for sparing me that particular misery