This song from Nickelback always inspires me to think about the things I need to do today, instead of worry about what I need/want to do tomorrow, or what I should/could have done yesterday. Too much we get caught up in our not-wanted pasts and hoped-for futures and forget about the needed todays.
My best friend gave me the best advice.
He said each day's a gift and not a given right. Leave no stone unturned, leave your fears behind,
And try to take the path less traveled by.
That first step you take is the longest stride.
If today was your last day
and tomorrow was too late
Could you say goodbye to yesterday?
Would you live each moment like your last? Leave old pictures in the past
Donate every dime you have?
If today was your last day.
Against the grain should be a way of life.
What's worth the prize is always worth the fight.
Every second counts 'cause there's no second try.
So live like you'll never live it twice.
Don't take the free ride in your own life.
If today was your last day
and tomorrow was too late
Could you say goodbye to yesterday?
Would you live each moment like your last? Leave old pictures in the past
Donate every dime you have?
Would you call old friends you never see?
Reminisce of memories.
Would you forgive your enemies? Would you find that one you're dreamin' of?
Swear up and down to God above
That you finally fall in love.
If today was your last day.
If today was your last day
Would you make your mark by mending a broken heart?
You know it's never too late to shoot for the stars Regardless of who you are.
So do whatever it takes
'Cause you can't rewind a moment in this life. Let nothin' stand in your way
Cause the hands of time are never on your side.If today was your last day
and tomorrow was too late
Could you say goodbye to yesterday?
Would you live each moment like your last? Leave old pictures in the past
Donate every dime you have?
Would you call old friends you never see?
Reminisce of memories
Would you forgive your enemies? Would you find that one you're dreamin' of?
Swear up and down to God above
That you finally fall in love
If today was your last day. 
