Live beneath your means.
Return everything you borrow.
Stop blaming other people.
Admit it when you make a mistake.
Give clothes not worn to charity.
Do something nice without having to gain recognition.
Listen more; talk less.
Take a 30-minute walk every day.
Strive for excellence, not perfection.
Be on time.
Don’t make excuses.
Don’t argue.
Get organized.
Be kind to unkind people.
Let someone cut ahead of you in line.
Take time to be alone.
Cultivate good manners.
Be humble.
Realize and accept that life isn’t fair.
Know when to keep your mouth shut.
Go an entire day without criticizing anyone.
Learn from the past. Plan for the future.
Live in the present.
Don’t sweat the small stuff, because at the end of the day – it’s all small stuff!

I can’t take credit for the simple reminders above but I found this list a couple months ago and it was too good not to share. I believe in a lot of these and try to incorporate them into my everyday life.