Right now I don't have all of the ingredients for this, but Green Tea and Apple Juice (as well as nutmeg and honey) are some of the highest-rated lucid aids on the forum. As soon as I can I'm going to be trying some Green Tea (home brewed and hot of course), sweetened with Apple juice and honey, and a little bit of nutmeg.

I'll let you all know how it works, but if anyone else has these ingredients at home (Not uncommon, pretty standard for the juice honey and nutmeg at least) let me know as well!

Happy dreaming!