First, ensure your mobile phone is low or empty of cash.
Second, travel to a random destination – for instance – to collect the church fairtrade stall goods.
Third, return home by a little known, obscure route, known only to yourself, especially on roads not marked on any map that is not designed for anyone other than serious walkers.
Fourth, run out of petrol!
a) The walk will do you good.
b) The reflection on the walk will remind you not to be so stupid in future.
c) You might want to check your fuel gauge to make sure its not faulty!!
(If I had returned following the normal route I would have run out on a busy duel carriageway with little hope of getting a ‘to-up’ without much faff – so I was glad to have chose the ‘other way’.)