DIY - Refill air freshners with essential oils! (I only recommend use of YL oils) NOTE: There is a definite wow factor that I will forever associate with plug-in oils now. I will NEVER buy one again, other than for the purpose of refilling!
DIY Scented Plugin - Fill your used (and rinsed) wall plug-ins w/ essential oils and water (this site recommends oil to water). Makes your own scented plug-in, less expensive AND no damaging chemicals!
Place a few drops of essential oil (one pinner suggested lemongrass scent) onto the cardboard tube of your toilet paper roll to make your bathroom smell good. Not sure how well it works but it sounds like a good idea.
How to Remove Residual Candle Wax From Candle Jars. You know all those pretty candle jars that you don't want to throw out? This is how to clean them so that you can reuse them for anything you want :)