They have about 12 colors that they rotate. The color they tagged 4 weeks ago is cheapest this week. 5 weeks ago the color was white so last Saturday all white tagged items went on sale for .69 each. Today they will pull all the white tagged off racks to dispose of so there is room for the new color.
They usually have color tags on items for sale, on one day it could be white, yellow, or green etc. On what ever day you go they will tell what color is half price
On the bank holiday Monday at Easter time They had 50%off selected items in the store I don't know if that's every Monday
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