Now that you've dug out the chambray and are rocking it with a darker wash, as per Tip #1, here's another suggestion for wearing denim-on-denim in a chic, modern way:
Incorporate another accent color/pattern. Offset head-to-toe denim with a jacket or blazer (go bright, if that's your thing!) wear a colorful belt, bag and/or shoes, pair jeans and a denim jacket with a striped or patterned top. I'm particularly fond of the look of neon accents with an all-denim ensemble!
Think bright colors and cute, trendy accents. Not this:
Check back for Tip #3! :)