Easter shifts play havoc with weekly data on retail sales, evident in ICSC-Goldman's same-store sales tally which surged 3.6 percent in the March 29 week while the year-on-year rate plunged 1.1 percentage points to only plus 0.6 percent. This year's Easter is three weeks later than last year which is depressing the current year-on-year rates, though these rates will soon begin to spike with easy comparisons as Easter approaches. The week-to-week rate, however, is very solid and comes despite unusually cold temperatures for the last week of March, the fourth coldest in fact in more than 23 years. Redbook will post its results later this morning at 8:55 a.m. ET.