I use them quite often. They can be a bit messy, depending on where you put them, but I've found that sticking them in a plant pot is a handy place. Doesn't seem to hurt the plant, either.
I have recently rediscovered joss sticks which are no longer the ubiquitous patchouli scent and burn them quite frequently. Musk or rose. I stick them in a small pot with blue tack which saves messy ash.
I used to but they are messy even in a plant pot so I use scented candles and reed diffusers but hopefully we will soon be flinging the windows open wide. I stop using them in summer.
I do not like "Joss sticks" They are always a bit too heavily perfumed and I find the ash "too smoky" scented candles are similarly "heavy" in their perfumes and you also get the smell of the paraffin wax.
I find the oil diffusers with the reeds, the least intrusive of these "perfume your home things".
There are holders designed to catch the ash from joss sticks. They're shaped a bit like a broad ski with a little hole in the curved end in which to stick the stick, so to speak. It then sits at an angle so that the ash falls onto the long part of the ski. Ingenious
MinmouseAll "natural products" including homegrown flowers etc have very complex chemicals compounds in them, or they would not smell at all.
Just read what chemicals are in Lavender.
"In vitro, lavender oil is cytotoxic as well as photosensitizing. A study demonstrated that lavender oil is cytotoxic to human skin cells in vitro (endothelial cells and fibroblasts) at a concentration of 0.25%. "
I love joss sticks, but have spent tonight listening to a lecture on 'History of Politics in the Holy Land' complete with atmospheric Frankincense. Ye gods but that stuff is foul.
Nelliem after I posted I realised that I should have written synthetic chemicals! Yes, not even natural products are perfect! I also think that Wikipedia is not necessarily to be relied upon for information unless it's backed up by links to proper research.
I also used to use joss sticks back in the 70's. Rarely use them now, but recently needed to do something drastic to remove the fishy smell pervading the kitchen after the production of a particularly delicious fish pie made by DH. The joss stick worked - I have one of the mini ski thingys to catch the ash - but then the smell pervaded the living room so it ponged of joss stick. Currently have an oil burner belting out lavender fumes in the hall as that fishy smell went everywhere.
Guess we won't be having fish pie again for a while....