Context: My daughter is finally potty trained! I'm so happy and will save lots of money not buying diapers.
Speaker 1: My daughter is finally fully potty trained!
Speaker 2: Good for her! She must be quite proud of herself.
Speaker 1: Yes, I am very happy as well! No more buying diapers haha
Speaker 2: Oh gosh. Diapers are really expensive. I forget all about that.