  The Fermi-L\"owdin orbital (FLO) approach to the Perdew-Zunger
self-interaction correction (PZ-SIC) to density functional theory (DFT) is
described and an improved approach to the problem of optimizing the
Fermi-orbitals in order to minimize the DFT-SIC total energy is introduced. To
illustrate the use of the FLO-SIC method, results are given for several
applications involving problems where self-interaction errors are pronounced.
