Creating the physical environment that the characters live in and making it seem as realistic to them and the story (even if it's a fiction post-apocalyptic setting) is one of my favorite things when it comes to filmmaking. I like the idea that the audience can see more about the character(s) or the story simply based on the details of the scenery.
I like to work with everyone when making decisions on the character's wardrobe. I want to know how the writer, director and actor sees them and I take those details into account when creating the mood board(s).
Shopping specific props is fun but what's more fun is making them. I love to use graphic design to create unique items that will be seen either up close or simply in the background.