Parkinson's Law

The other day, while looking for a totally different word in the dictionary, I came across the term Parkinson's Law.  (This has no connection with Parkinson's Disease.)  It is the idea that work expands to fill the time allotted for it.  I had always known that there was a concept like this, but never knew there was a name for it.  . . .  Upon further reflection, however, I realized that in retirement, work (or any other activity) expands quickly and dramatically to fill the time allotted.  You could think of this as Parkinson's Law on steroids.  . . .  So, now you know what you have to look forward to when you retire.  If you're already retired, you now know where all your time goes.