At a local flower shop, your wife could have seen the most beautiful bouquet and decided to buy it for your home. She might have also learned about some new flower varieties from the florist and how to take care of them. And if it was a coffee shop, she could have met some new friends while enjoying her favorite latte and had a great time chatting about different coffee blends.
Perhaps at a book store, your wife could have met an author she admires who happened to be doing a signing. They might have had a great conversation about the books and she got some inside tips on the writing process. Another possibility is that at a home decor store, she got inspired to redecorate a room in your house and has all these amazing ideas to share with you.