Always wear a jersey. Have to go outside to the garage anyway and I find it useful to put my phone (music/podcasts) in when I am training.
Prefer to have just my cycling top all sweaty than a base layer.
As someone else said - it is all part of the ritual of getting ready to focus on training.
I tend to do my endurance rides with a top on and no fan to help with heat acclimation. That lets me hit the hard sessions really hard (with a fan and no top) and suffer less from heat build-up.
Mike
Now, duh! Why did I not think of doing that? Hopefully I will remember this spring.
No shirt unless I need it to start and get warmed up. Shoot, the bibs I wear are ancient.
At my current weight, I hate to think what jiggles on the bike (and runs). Thank goodness I don’t have a mirror in the pain cave.
Whoa, what a difference the fan makes 
I used to soak everything near me and leave a puddle on the floor.
This time i could just barley sense some sweat materialize on my forehead in the last minutes of a ramp test.
I started sweating way more after the shower 
I ride in what is euphemistically called a “3 season room”. The truth is, from April to September it’s way too hot where I live to train in that room, but it’s a small house, and my wife is only willing to put up with so much.
When I’m training, I have a large fan, a mica space heater, and an overhead fan. I will usually wear to tech t, but if I don’t have one handy, I will put on a jersey.
I have remotes (as noted above) for the heater and the large fan. My usual routine is… Space heater on, no fans. Space heater on, overhead fan. Space heater off, overhead fan. Large fan on.
One learns to adapt.
I always wear one, I have teen kids, and I dont care what they think about it, but they always have friends over, and I hate being the large adult in lycra when my daughters friends are over. 
I also like having somewhere to put my phone, and such, so I use the pockets much the same as out on the road.
I live in Scotland and train in an unheated brick shed.
So in other words, “Yes, obviously”.
Same as this except no base layer, when the pace ramps up further in to the workout I turn on the 3rd fan next to my head
I wear an old triathlon top. I find that it helps wick sweat and with a good fan, it keeps dripping to a minimum.
The amount of people who like wearing gloves on the trainer makes me shudder. I just use some wristbands. Sometimes a headband for the sweatier days to save my glasses. Also with only bibs on with the danger of looking like and 80’s instructional vhs extra
I wear gloves on the trainer. Only recently started doing it but I struggle with numb hands (inside and outside). A combination of gel padded gloves and raising the front wheel has near enough got rid of the issue inside. As I am improving my core and putting less force through my hands it is improving outside as well.
Wear a tshirt most of the time and a headband as stops sweat dripping down and making my glasses slide about.
Man, wait till I tell you about ketchup on steak.
I wear a jersey and use a fan. Sometimes I wear a tee shirt, but I find a jersey more comfortable.
I always wore mitts for padding, but now I’ve circulation issues (likely Raynard’s), I wear winter gloves and liners, same as for outside rides.
However, I’ve previously seen it suggested that you should wear gloves or mitts to stop sweat getting on the handlebar/ hoods.
I have raynaulds too, and I can understand the padding issue if your bars aren’t too comfy, just personally my hands are so sweaty I can’t imagine how prune like my fingers would be after an hours turbo 
I genuinely had never really noticed sweaty hands, but especially not with the Cleva/ Lasko Fan.
But today was a non-fanned (car park) workout - down to an opened and sweaty jersey, but no sweat issues in my winter gloves!
Now that it’s getting colder I start off with a loose t-shirt with one fan going, then as I warm up I take the tee off and turn on my 2nd fan with a remote control (it was a Lasko from Costco similar to this one TOTAL game changer): https://www.bedbathandbeyond.com/store/product/lasko-reg-16-inch-remote-control-pedestal-fan/1018956306?skuId=18956306&&mrkgcl=609&mrkgadid=3253337579&rkg_id=0&enginename=google&mcid=PS_googlepla_nonbrand_outdoorutility_local&product_id=18956306&adtype=pla&product_channel=local&adpos=1o2&creative=232742511253&device=c&matchtype=&network=g&gclid=EAIaIQobChMI7qf_9fPn5QIVOYNaBR1AOwQgEAQYAiABEgKzI_D_BwE&gclsrc=aw.ds
My husband has his bike set up next to mine in the basement, and I’ve found that when I get into really long VO2 max and upper end intervals I sometimes turn his on too (can do it with my remote which is neat)!
I just wear bibs and i have my fan blasting my chest upwards. Sometimes wear a sleeveless base layer but thats as much as ill go.
No socks?? Do your shoes smell heinous or what? And what about blisters? So many questions
