What stresses you out?

They say some of the most stressful things in life are:

Starting a new job
Moving
Major relationship changes

Maybe I'm weird, but these aren't even on my top ten list. Sure, there's some stress involved, but they're all well within my control, and that makes them seem manageable.

The things that tend to cause me the most stress are the ones that are beyond my control, like:

Traffic/construction/accidents
Long checkout lines at stores
Things not being ready/complete when promised

Am I really strange, or do others feel the same?

What stresses you out?