When you hear someone talking, and you think, "She sounds exactly like <insert Sim name>"
When you see a piece of furniture, and wonder what it would look like rotated & placed by the wall, on the other side of the corner.
When you are looking at a piece of furniture, and you get a whim wondering what it would look like on the next level.
When you feel like grabbing a ProseNPop and your guitar.
When you are trying to repair something, and you wish that you had a focus painting, to make it go faster.
When you don't like a piece of furniture, and wish you could delete it, altogether for some money.
When you see a picture on the wall, and you wish you could enable its emotional aura, to get along with someone better.