Here are some tidbits of the best advice I've received throughout my life to date!
Concerning Worry: Don't worry about anything instead pray about everything.
Concerning Friends: To have a friend, be a friend.
Concerning Strangers: Be kind and gracious - you never know when you're entertaining angels unaware.
Concerning Dating: Play hard to get. Never let them know they have you. Be mysterious. Also, if you can't see yourself marrying him, don't waste time dating him.
Concerning Food: If you can't pronounce the ingredients, don't eat it. (Um, I don't always follow it, but it's great advice.)
Concerning Marriage: Keep God first, laugh often, give your all and don't take him for granted. And put forth the effort to look/smell nice before he gets home.
Concerning Parenting: Pray for wisdom, seek godly council and no one knows what's best for your child, BUT YOU.
Concerning Difficult People: Pour heaping coals of kindness on them.
Concerning Organization: If you haven't used it in a year, throw it out.
Concerning Housekeeping: Do at least one load of laundry every day.
Concerning "Stuff": It's all wood, hay and stubble.
Concerning The Future: Never say never.
Concerning Sin: It takes you farther than you ever wanted to go, keeps you longer than you ever wanted to stay and costs you more than you ever wanted to pay.
Concerning Laughter: There is an element of humor in most all circumstances.
Concerning Social Networking: If you wouldn't say it face-to-face, just don't say it.
Concerning Childbirth: Meditate on the end reward.
Concerning Stretch Marks: They're battle wounds for motherhood. Own em! (Um, does this count even if they're not on my tummy? HAHA! Um, my hips went through the war, too - apparently.) :)
Concerning Interior Design: Light your rooms with lamps. Just say NO to overhead lighting! (excluding the kitchen, of course.) Do not hang your pictures up too high. Go big or go home (i.e. a tiny plate on a giant wall - AH!).
Concerning God: Delight yourself in Him.
Share some of YOUR good advice, ladies!