When you look at everyday objects and refer to them as the sim version. For example, I was taking a shower at my boyfriend's house. "Yep, this is a simple shower. Hopefully I can avoid the cheap shower moodlet. Wait, what?" <-- my thoughts the entire time.
Also, I've been trying to figure out how many "squares" my own house is so I can re-create it. The downstairs bathroom is 3X1 and has a bargain john and a counter/squatter's sink combo.