Dp and I love to camp behind pubs when we can, sometimes with dcs, or like last night, alone when they're with their dad.
We had a night behind a lovely pub we go to. It's a camping and caravan certified site so only cost £6 to pitch. The meals are £10.95 for 2 and are delicious, plus there's real ale
No taxis to pay for either 
Anyone else tent camped in the UK yet? We can't wait to do some more.