No heating on yet here in the Midlands, but the temperature indoors is 19.5c this evening with the curtains drawn and the conservatory closed off so we're fine.
I have had my shower room heated towel rail on in the morning twice this week though ?
I'm a firm believer in wearing a vest, long socks, warm trousers, thermal tops, cardigan, you name it, before the heating goes on! I don't like breathing hot air and don't think it's particularly good for us.
My Dad (91) has been with us today, very under dressed as usual in thin trousers and just a shirt. He heats his flat to 22c or more. The trouble with this is that he's got no concept of the outside temperature and is always cold whenever he goes anywhere.
He was lent a jumper and given a fleece for his lap here. I think I'll buy him some vests!