Hickory Dickory Dock, the Rat's Nest in the Clock - S1.E18

This episode features the renovation of an office and the complete transformation of a garage. Sarah and Don Smith have been married for a while now and have a nine-month child named Leah. The rooms are converted from ranch-style to more family-friendly, with the old guest bedroom in the garage actually becoming a nursery room. To make sure these spaces are the best they can be, Peter helps Sarah and Don get rid of the old clutter they don't need. Any of a number of things are on the chopping block as Peter helps them to realize that just because something's been around a long time doesn't mean they have to keep it.