H: vi) Contingencies
It is good to make good contingency plans and to have a sum of money available, in order to meet the unexpected.
Regular maintenance of equipment and premises can reduce many causes of the unexpected, but not eliminate them.
Read local papers, and know what is happening with road closures/diversions, building work and other things which may have a direct effect on your business; then plan accordingly.
Some contingencies cannot reasonably be planned for: (such as weather, terrorist attacks, economic downturn etc) and you may have to handle the eventuality as best as you can.