From People I've Loved, the Rose Air Freshener: "Love Stinks. From the mustiest corners of our hearts, this air freshener makes a great gift for the romantic / anti-romantic person in your life. Hang it anywhere that needs a little freshening up—it smells like a rose!" $6 at Beautyhabit.
To match their new After Sun Eau de Toilette, Vacation's After Sun Air Freshener hang tag: "The Vacation® After Sun Air Freshener features the “vivid” and “quenching” aroma found in our famed Vacation® Brand After Sun Gel. It contains notes of aloe vera, cucumber water, citrus colognes and freshly folded resort towel all conveniently diluted into an air freshener form suitable for home, car, office or junior hotel suite." $5 at Arielle Shoshanna (and yes, they do make an actual After Sun gel too).
If Nordstrom puts these on mark down, I might pick up a Greenhouse Scented Air Freshener Tag from Earl of East: "A fresh blend of sweet vine tomato, parsley seed and basil, Greenhouse is inspired by the rural villages of the Greek mainland." $18, and also available in Smoke & Musk and Jardin De La Lune.
Ritual's model in the car fragrance category, the car perfume, is cheaper than some (Acqua di Parma, Jo Malone, Diptyque) and more expensive than others (Joya, DS&Durga, Little Trees). It's basically a wood diffuser that clips into your air vent. My pick of the fragrance options: Orris Mimosa ("Life is a journey, so enjoy the ride with this car perfume based on the beautiful fragrance composition of orris root and mimosa flowers, lifted by distinct leathery accents and gentle woody aspects. The car perfume lasts up to 6-8 weeks and is activated by the air flow from your car's fan"). It's $22 at Macy's.
Too spendy for me personally, but one of the better looking car diffuser devices I've seen: "Acqua di Parma meets Poltrona Frau, a symbol of leather know-how, research and design. Together, they now present the Car Diffuser, an object of design conceived in every detail by the award-winning design duo GamFratesi, to offer an enveloping multi-sensory experience and transform every trip into an unparalleled experience." Available in several colors and more than several fragrances, shown is the yellow ($175 for the case only at Neiman Marcus), which I'll take with the Aperitivo in Terrazza scent ($65; "The solar Italian elegance captured in a fragrance made of sparkling citruses where lime, blood orange and grapefruit together with a heart of gentian absolute followed by the warmth of cinnamon from Ceylon evoke the well known bitter accord.")