Hi all I posted this deal a couple of months ago and thought should repost for all those who might have missed it.
I was looking for some cheap airport parking at heatrow and came across gosimply. 17 days parking budget/economy meet and greet car parking through purple parking comes to £59.64.
I tried some dates in may july and august. For example from 1 to 31 July (1 month parking) £74.65.
Tried 1 week at £52.64. Still cheaper than normal parking.
I haven't checked others but if you find any good deals at other airports post your results please.