I was at LD at Tillicum Mall night before last and the cs gave me a list from Head Office of what can not be stacked anymore regardless of the wording.
Raid
Off
Kiwi
Scrubbing Bubbles
Pledge
Windex
Glade
Ziploc
Shout
Drano
Saran
Toilet Duck
You still can use bogo with $ off though.