Amazon has the Air Wick Essential Oils Diffuser Mist Kit in Lavender & Almond Blossom (https://www.amazon.com/gp/product/B075HP5G2D?tag=quackdeals-20) for just $5.99 (originally $13.38, free shipping with Prime or on $35+ orders). Just clip the coupon on the product page to fill your home with calming scents at a fraction of the price.
(https://m.media-amazon.com/images/I/81zQRwNMxuL._AC_SL1500_.jpg)