Sorry, but there is no such thing as cheap flying unless someone else is paying.
Cheap is a relative term, our Goodwood base Falconar (Similar to a 2 seat Jodel) works out around £60/hr or so if you fly 4 hours/month, less the more you fly and certainly cheap flying compared to any of the club machines around! In fact even just flying an hour a month will end up cheaper than hiring from the club