We did naked from the waist down for a couple of days, we never prompted him to use the potty, he knew to take himself when he felt the urge. Then pants and that was it really! Only a few accidents and within a week he was dry and dry overnight quickly followed. We have a portable potty too.
We only recently potty trained. Nothing for 2 days, then clothes. We did buy the puppy training pads for the car/sofa but didn't need them.
Definitely potty for living room and get a seat for the toilet.
We went with bare bum in the house, but just pants out and about. Have a potty in the lounge, one in her room, a seat reducer for both toilet. We did get a carry potty, as we were out a lot in the summer. We had puppy pads on the sofa (after a few accidents on there) and still have a protector for the car seat (allowed by the manufacturer). Prompted her every 45 min I think, if she had an accident we cleaned it up together and just told her that next time she needs to use the potty. I learned her cues soon enough, if she was engrossed in something, she would try and hold it, but didn’t quite manage at first, so I would just take her to the potty. Good luck!
We went straight to pants & take the portable potty with us everywhere. My friend said she has a potette, which can be both a toilet seat or portable potty which sounds good. We avoided pullups, but I did use one when we went out for the day on her birthday because she does still have accidents. When they've got a pullup on they don't feel the need to stop what they're doing & go on the potty and sometimes can be so absorbent they don't realise they've done a wee. I think, but can't prove, she wees in her pullup on purpose after her nap most days rather than get up & use the potty.
I started potty training my girl a few months ago I went straight to pants as the only way they will learn is by feeling wet and associating it with going in a potty. She went straight to pants and I asked her every 30 minutes to go and sit on the potty she’s now pretty much fully trained for day time just poos we are trying to manage now