Ikea.

Doug: I want this couch, should I buy it?

Me: No. First, you don't even know if you can get it into your apartment. Second, what if you move into a condo in the next few years and it doesn't fit in that place. You'll be devastated.

Doug: So you're saying I should wait five years to buy this couch?

Me: Yes.

Later Doug bought a few pieces of furniture in this exact display.

Me: So are you just buying all the other pieces, so that you'll feel forced to eventually buy the couch because it's the only thing that will match?

Doug: Yes.

And later:

Doug: Should I get these curtains for the living room? Have you seen the rug in there?

Me: Yes, but the drapes don’t necessarily have to match….oh God. Forget it.