Langria Memory Foam Lumbar Pillow | $15 | Amazon | Promo code OA2MFDT2
Photo: Amazon

If your car seat or office chair doesn’t have enough lumbar support for your liking, this $15 memory foam cushion is easy to take with you anywhere, and will make you more comfortable while encouraging good posture. Just use promo code OA2MFDT2 to save at checkout.