If your household is like mine, I'm sure you get your fair share of junk mail. My wife and I try to dispose of as much as we can as it comes in, but sometimes it just gets set aside if it looks like it might be something I might possibly want to check out. I know what my regular bills look like and I recognize something personal from someone I know, so those are easy to separate and take care of immediately. But there are those other curious pieces of mail that might be worthwhile and need further investigation.
There is that mail that looks "official" or otherwise important that one discovers upon opening is really a sneaky attempt to extract money from their wallet. I've gotten pretty good at spotting those, but some pieces still end up in the "to be checked later when I have time" pile. And there are certain special offers that maybe I might be interested in but I don't have time to look right now. They also go into the "look at later" pile. Eventually after a few days I have a small stack of mail over which decisions need to be made. Out of this pile may evolve another "I really don't have time for this right now and I'll look again later" pile which accumulates on a kitchen counter until it is moved into my office.