TD5 oil filter

I've just changed the oil and both oil filters in my Disco2 TD5! Having large hands and the way in nestles behind the exhaust manifold doesn't help when removing/replacing filter; I'm sure I've got it tight enough but...

Is there a technique for easily screwing on and tightening the cartridge oil filter?

How about one of these ?

DA1117 Land Rover Discovery TD5 Oil Filter Spanner Wrench | eBay

Brilliant! I knew there must be an easier way!