I wear short skirts more in winter funnily enough with boots and patterned tights. Just bought a gorgeous one that I feel is too short for work, a few inches above my knee, sort of kicks out a bit. I love it, but think it will be nights out only.
Agree with cod though - look odd at home when take boots off.
In summer I wear long ones with flip flops, hate my bear legs.
BTW what is the rule for short skirts, is it never over the knee if over 30?