Re: How comfortable is your 'shop' ?
KC has the right idea for bench work.i have made various tool racks,for clamps and vise grips for the welding bench.
a solid base for vise is important,probably the most important.
my welding bench holds my vise on a square tube from the underside,i can pull it out and turn it 90 degrees,so jaws are vertical,or even upside down.and it stows away
as far as warm in winter,i suggest you at least close in the ceiling,vapour barrier and
sheeting with drywall.
i insulated my garage (24x32) years ago,one payday at a time.if you are a renter,then its a problem.
my dad covered the inside of a shed with sheet cardboard,stapled it up and it was much warmer on cold days.