Have your characters ever gone shopping with you?
Have they ever gotten you to buy things when you probably shouldn’t have?
Has a new revelation about their tastes in clothing, movies, or music come up as you perused those sections in a shop?
Have you started collecting little things that they would have–jewellery for instance?
If you answered “yes” to the questions above, congratulations! You’ve begun to gain new and interesting insights into your characters’ minds and world. You’ve also gained new things to wear to focus your mind and prepare to write about your characters. You may now have new ways to describe the weight and feel of certain objects because you own them yourself. You’re on your way to a better, more believable story!
My condolences to your bank account.