All great ideas above. Essential oils/scented candles in an array of scents are a good idea so you have a variety to choose from depending on your mood eg my go to blends are: need uplifting (eucalyptus, lemongrass, black pepper) or relaxing (lavender, vetiver, frankincense) or stuck in hormonal hell (geranium, frankincense, mandarin).
I would also say that creating a little bit of "spa" in your everyday life is really the key to getting all the benefits, such as:
Have a gorgeously scented candle on your bedside table and light it for 10 minutes before bed, when you're getting ready for your day or for a night out etc.
Have hand cream, foot cream and night cream on your bedside table (or close by). Liberally apply all 3 before sleep, taking the time to slowly massage them into the skin. It feels really indulgent & will quickly become the norm, meaning you'll miss it when you forget it! It is a great way to help wind down before bed.
I have a small tray in my bathroom which holds a set of white face flannels, my skin care regimen (cleansers, toner, serum, moisturiser), rose quartz face roller, tweezers), hair ties, face masks & under-eye gel patches. I'm finding that I am using my products more regularly now because they're all ready to go and looking luxe rather than being in a cupboard.