Quick Question

I went to Publix today to buy some ingredients for baked goods. However, I couldn't find meringue powder (or powdered egg whites) anywhere.

My question is this:
Does anyone know where I can find this product? Does Publix usually sell it, but I looked in the wrong place? What about Wal-Mart? I'm pretty sure Michael's does, in their cake decorating aisle, but I won't be going there for a while. If anyone could help me out, I'd greatly appreciate it!

I did however find everything else I need (including the parchment paper that was on sale!!) for baking this weekend! :)

Update! I went to Wal-Mart this afternoon and found, in the cake decorating section, a really big can of Meringue Powder. Thank you to everyone who responded to my question! Your help is much appreciated! Now, I need to get off this computer and start making cookies!