put some saltines, soda crackers, or a slice of bread in w/ the brown sugar --- I know that works to restore it to its former glory. I don't know if the same works for the creamer or detergent, but it's worth a try.

can't you still use them? I mean really, why throw them out when all you need to do is chip some out and add it to the liquid it may already go with (ie water with the detergent, perhaps melted butter with the sugar, coffee with the creamer)

to begin with, don't have them all on the same table, ahem. i think rattle them and sift them but no, just throw them out.

Place about the amount you want to use in a glass bowl in the microwave for about 20-30 seconds. This should soften it up for use;adjust time in microwave as necessary. If you can't chip away the amount you want...just put the entire package in the micro!!!!

Ive done a slice of bread in rock hard brown sugar. It works super well. So I second that. Never tried it with the other ones though. Maybe try the bread with the creamer too?

I had another thought about the detergent: if the bread trick doesn't work, try a cheese--or better yet--a spice grater. That should at least get it back to powdery consistency.

I seem to remember when I had some older detergent it didn't dissolve as well as it should have in cold/warm water. I imagine if you heated up a cup or so of water and dissolved the powder in that before pouring it into the laundry that'd work too. The lame thing about the powder not dissolving was when you'd pull your clothes out there'd be flakes of soap still stuck to your clothes, and it took a lot of extra rinsing to get it out.