Example:
You can often tell the difference between a bachelor-pad and a couple/family-apartment simply by glancing around to observe how stuff is arranged --- if there's a lady in the house, everything will generally be neat and orderly, whereas a guy who lives alone will likely have at least one crap table where the flotsam and jetsam of typical everyday single-dude existence tends to gravitate to and then never see the light of day for months... he simply tosses his randomly-acquired tidbits there because at the time the items seem too precious/possibly-useful to discard, but then when he eventually has to rummage through his "treasures" to find some solitary item he put there six months ago, he face-palmingly wonders why he ever held onto most of the crap in the first place (extra points if he thought to drag over a wastebasket before beginning his "attack" on the pile).