It's a no grainer

After finishing my work, I sneaked on a shopping mission before going home. There were two levels of access to enter Ms.L's flat. Ms.L's flat was on the fourth floor. Decided to take the lift as the weather was mucky.

Ms.L already has the list ready. It's a short one. I left my bag there and went to the Sainsbury near the station. It's not a big shop and some of the items which Ms.L requested were missing. After scanning the items in self-checkout, I realized it was a card-only checkout. Then with the help of a shop assistant, he transferred the scanned items to the cash checkout machine and finished the shopping.

It's a three-minute walk from the shop to Ms.L's house. She said she would get the other items later(fruit bread and pears)