Home Fragrance That's Just Right

When it comes to home fragrance, I feel like Goldilocks. Reed diffusers are pretty, but tend to have poor throw. Room sprays don't last and need to be re-sprayed frequently...too much effort for me. Candles are nice, but require monitoring; I'm always worried about falling asleep or leaving the house without blowing them out. Where's my "just right?"It would seem that some kind of safe, automatic