Store displays

I went to the supermarket and noticed that were more store displays in the shop than usual. I think that is because the store is holding a sale. I asked the salesgirl why there were so many store displays in the shop, and she confirmed my thoughts by telling me that they were indeed having a sale. So I immediately called up my sister, as she had told me to let her know whenever that particular store had a sale, as she loved the products but found them too expensive to purchase at their normal rates. My sister was happy to hear my news, and said that she wants to go to the store tomorrow and asked me whether I could accompany her tomorrow. I said that I could, but it would only be in the evening as I have to go somewhere else very important during the daytime.