Disaster strikes when you least expect it. You may not be flying afterwards if you haven't built up spare margins.
Doves grow extra feathers in self defense. If a predator bites, they readily shed those spare feathers to fly away.
What margins are thin in your business? Is it money? Or time?
Is there one small change you can make each week to start investing in your thinnest margin?
Improve your time margins by scheduling a 'make-up' day or 'deep-dive' time each week.
On the next proposal, set the start time an extra week out to start building a pipeline.
Set aside 5%-10% of the next payments in a business 'emergency fund'.
Alternatively, structure your next proposal with margins for 20% profit.