They are getting bigger!
I bought a greenhouse for my herbs (less than $40 and it's huge, much bigger than I was expecting!). It will hopefully keep them nice and warm and happy in our north-facing sunroom, and also protect them from our cats, which are far too inquisitive. I've got the Italian parsley (which is doing well) and coriander (which is struggling) in there, and I've added some mint, thyme, marjoram and oregano, plus another house plant that has been a bit unwell. I've left my baby bay tree outside as it seems to be coping with the cold.