Once bitten, twice shy
You are more cautious when you've been hurt before
You can't have your cake and eat it too
You can't have everything
The elephant in the room
The problem/issue people are avoiding
Best thing since sliced bread
A great invention
Back to the drawing board
When something doesn't go well and you need to start over
Back seat Driver
When a passenger tells the driver how to drive and what to do
Baker's dozen
Although a dozen is 12 items, a baker's dozen is 13 items
Cup of Joe
A cup of coffee
Dropping like flies
A large number of people getting sick at the same time
Excuse my French
Forgive me for swearing or cussing
Southpaw
A boxer or baseball pitcher who is left-handed
