Go to the bar in Hogsmeade (Hog's Head?) for a shorter line if the lines outside are madness.
Not sure where to go for a short line in DA, though the indoors place isn't unpleasant to be in line.
Hot butterbeer is the best, but it's sweeeeeeet and I wish they had a half-portion for me. I do love frozen, though, but the last couple years I can't stop getting brain freezes no matter how careful I am. Crying while at a themepark because of multiple brain freezes isn't fun. Sadness.