When I buy Celery, I always get the whole celery bunches, not the hearts. I cut up the bulk of the celery into sticks (fairly thin sticks, as it's easier to chew and encourages my kiddos to try it too), but I never throw away the tops. They have great flavor and work terrific in soups and stews.
So I chop up the tops and throw them in a freezer bag. That way I always have celery for flavoring in soups, yet I don't have to sacrifice any celery sticks (which are my healthy crudite snack of choice). I know it's a totally simple tip, but something I only recently started doing. I never knew you could use the leafy insides or the tops. Now, I feel as though I'm getting double duty out of my celery purchases.
as a side note: I have been encouraging my kiddos to try new healthy foods recently. This is not always easy. One way I have found helpful is information. I talk about what each food does for our body, how it helps our muscles, or our immune system (fights the bad guys), gives us energy, etc. My Selah loves this! She is learning about health and nutrition, plus is willing to try lots of new foods. How awesome ~ Lori