In a word, none. The uncertainty limit too small to have any effect for macroscopic objects. The limit is Planck's constant divided (4 times pi). That value is about 5.37x10^-35, with units of Joules times seconds. This is the "error" in our measurements due to the Heisenberg Uncertainty Principle.

A 100 watt light bulbs puts out 100 Joules of energy each second. For comparison, the energy of a one-ton car driving at 60 mph is 0.326 Joules. We might be able to measure that to more places if we wanted to, but not to enough places that uncertainty would be significant.