My point is that time can be measured in numbers -- hours and months and decades -- and also in regular actions and purchases, and these vary as do chronometric units. To say to someone, I'll see you in a couple of milk cartons would indicate a different time span than, I'll see you in a couple of dentist appointments or In a couple of major home renovations or, going the other way, In a couple of toilet flushes. For me, dish soap is somewhere in between cereal boxes and bay leaves.
Now do you understand why my publishers shake their heads at me? I'm sure I could find something more career-related to talk about, but I don't want to. I would rather measure out my life in dish soap than tell you about my upcoming book launch.