I highly recommend Nature's Plus Potent C Energy drink packets.  These are great for children and adults.   It has a little fizz and an orange flavor, which kids love.   It is a great substitute for colas or other high sugar drinks.

You mix each packet with 4 oz. of water for 1000 mg of vitamin C, plus many other vitamins and minerals.  This is great for cold and flu season, and even everyday.  It is an energy drink, and provides a pick-me-up.  I take them some afternoons when I am really dragging. 

By the way, did you know  (according to our local vitamin and herb expert) that if you take vit. C in a pill or capsule form, your body can only absorb 500 mg at a time?  But, if  you take it in a liquid form, such as these drinks or ascorbic acid mixed in oj, your body can absorb 1000 mg at once. 

You can buy these at your health  food store or order online at www.vitaminshoppe.com.  If you order $50 or more from them then shipping is free.  If you use a lot of herbs and vitamins, check out their prices.  They are usually less expensive.