Other options include owning a share in an A/c.
At White Waltham a share in an turbulent type aircraft can be had for £600 and flying costs £6/hour. Its cheap but its hard cold alfresco flying. Cherokee shares go for £2000 and up for £40-50/hour.
Whatever you do don't fly round in circles. Go places go to new airports, go to Frnace and the channel islands.They have cheap fuel and duty drawback. Do a night rating, do some taildragger flying, Cambridge rent Tiger moths at about the same rate as a PA28. Set an aim such as landing at exery airfield in the south (or north) of england. Use all of the Atco services , don't be afraid of them like some pilots seem to be. Have confidence getting through airspace like luton and southampton. Practice a PFL every time you go up.Remember to get the 300nm flight in as well.
Whatever you do have fun and make your logbook (and flying) look interesting.