DST is the perfect liberal program. Gives you something (extra daylight at end of day), for nothing (less daylight in the morning).
This is the one energy conservation program that I find the least objectionable. Most of the year I get up before dawn anyway. It doesn't bother me.
The limitations on DST and double daylight savings time (DDST) should be determined by whether large numbers of children are going to be crossing the street in the dark: on their way to school in the morning, on their way home in the afternoon, and Trick-or-Treating on Halloween. Right now DST ends the first weekend after Halloween, and that's the reason.