Feel free to use regular pump bottle if you'd like.
Mix equal parts white vinegar and water and add a couple drops of your favorite doTERRA citrus oil. (Lemon, Lime, Grapefruit, Wild Orange, ...)
Spray directly on stain. Wait for several minutes and clean with brush and warm soapy water.
For greasy stains, sprinkle with corn starch and wait 15-30 minutes before vacuuming.
You can mix 1/4 cup each of salt, borax and vinegar for a heavy duty cleaner. Rub it in and let it sit for a couple hours.