Here's my rant... I too am irritated by the "110%"... it's not mathematically possible!

As an individual, I have to factor in lots of variables when determining how much of myself to give to a project or event.  If on a scale of 1 to 5, with 5 being the highest effort, I'm working on something that is critical to the success of my team and my organization, I can &amp; should expect a 5 from myself.  If it's not as critical, say a "2" level project, it won't get the same effort from me.  I won't sacrifice time with my family, critical time needed for more important projects or just time relaxing on some project that isn't critical.  It doesn't mean I'm lazy, or don't want to do things well.  It simply means I want to do the most important things extremely well, and that I'm smart enough to know that my time, energy, resources and will all have limitations to them.  Since there are limitations on those things, there's no way I can or should go "all in" on everything I'm associated with.