I wouldn't waste your clubcard points on tickets for going out, they reviewed it recently ( watchdog or something similair) and there were always cheaper tickets available for theme parks on the net, in tourist information centres etc.
Using tesco points was the dearest option, better used to buy the food for the day out.
Local papers are good,
Usually goog info in the local libraries, and events for the kids there aswell.
Also the good old tourist information have leaflets, and usually vouchers attatched to them.