A period can do anything a semicolon can do, really. Furthermore, I am frequently seeing commas where a period (or a semicolon) should be.
Let the semicolon serve as a micromonument to emotional correctness. Thats where I am seeing semicolons anyway - after sentences as a proxy for a facial expression and thus some emotion.
I will still use semicolons when I am writing an address in a paragraph to separate a persons or entitys name from the street address and the street address from the city, state and ZIP code.
Does anyone have any thoughts on this, aside from a ; itself?