My generation grew up on Koolaid. My grandkids love it too. I buy the individual packs and add one to a sportcup when I have kids here. That way it doesn't go to waste if it isn't used when they go home. I hate throwing it out but my husband and I are diabetic and can't drink the reg. kind. I do buy the sugar free version for my husband.
When I was a kid we froze it in ice cube trays for a treat. Now there are so many things on the market the simple Koolaid ice cubes are lost in the shuffle as a treat.
I buy the single packets to make homemade playdo with also. It gives the playdo a scent as well as being warm and pliable. And you can make a lot of differant colors with it.