If you are a calorie counter, there might be room for the occasional treat! I cycle my calories like this:
M - 1700
T - 1400
W - 2000
Th - 1700
F - 1400
S - 2000
Su - 1700
It equals 11,900 calories for the week which is the same as having 1700/day for 7 days. The 1400 days were tough at first, but having Saturday be a 2000 cal day is well worth it. Check out this link to figure your own Zig-Zag pattern:
http://www.freedieting.com/tools/calorie_calculator.htm
Let me say though - that the saturated fat in DQ ice cream alone is enough to make me think twice!! I find more satisfaction in eating "extra" calories in nuts, lowfat cheese, whole wheat toast with almond butter, etc.