Laws of expansion

Not the standard physics laws of expansion.

• Work expands to fill the available time — also known as Parkinson's Law
• Stuff expands to fill the available space — also known as Jono's Law
• Cost expands to fill the available budget — also known as life

After grandiosely naming "Stuff expands to fill the available space" as Jono's Law, I came across "Ryan's Application of Parkinson's Law: Possessions increase to fill the space available for their storage," in Arthur Bloch's Murphy's Law Book Two, p 84, which, at least, is perhaps not as pithy.

Also see:

• Muphry's Law
• The Peter Principle
• The Generalised Peter Principle