All the time! By bringing gratitude to the forefront of your mind you make it a habit. So start thinking right now about all the things you have to be grateful for:

Your Life
Each Day
Each Breath
Each Moment
Laughter
Tears
Joy
Love
Nourishment of All Kinds
Your Home
The Clothes You Wear
Your Friends
Your Health
Happiness
Your Money
Your Family
Freedom
Art
Music
Opportunity
Sunshine
Rain
The Seasons
The Stars
Smiles
Your Mind
Your Body
Your Spirit

And that doesn't include all the specific blessings you receive every single day! There's so much to be grateful for . . . all you have to do is allow yourself to see it. And then express it - here and in your heart. All the time.