LEPRECHAUNS. Protect your finances by investing in a tracker fund, rather than relying on an ailing currency and leaving a 300foot technicolour arrow in the sky pointing to where you have hidden it.
CINEMA BUILDERS. Don't bother installing a front row of seats, nobody ever uses them. Simply start with the second row.
POTHOLERS. Take a tip from cats and avoid getting stuck in holes by growing a moustache to the exact width of your body.