I use scented candles. Hence my signature, lol I've tried incense and I'm really sensitive to the smoke, I get allergy like symptoms. Though I was just in venice beach and there were quite a few I encountered that were nice!
I love both but with our new house the man who came here for the alarm system told us to be careful with incenses and candles because the system is very sensitive to smoke and could go on so I'm not sure if I should burn incense or not here, I don't want the alarm to go on because of a stick or cone of incense .
I actually enjoy candles, but if I don't have a candle then I'd pick room spray. I had one of those air wicks that spray every so often but that can be startling when you're not expecting it. I like fresh and light scented room sprays like bamboo or a fresh citrus scent.