1. Never enough outlets.

a) Try running 12/3 or to all you outlets, isolating the top from
the bottom and adding a switch to the bottom outlets if not to top and
bottom. This will allow you to leave those wall transformers plugged
in 24/7, but turn off power to them when you leave the shop.

b) Duplex outlets in the ceiling can serve ideally for the four
foot fluorescent "shop lamps" sold at Lowes, HD, etc for about $9. And
you can do the switched approach on these as well in case you have a
need for a DROP CORD approach to a tool - assuming your shop would not
be usable with the lights off e.g. nto enough window area to let in
sufficient daylight for working.

2. The wall on the house side might prove a treasure trove of points
to secure power, telephone line, cable TV, water, sewer access. Is the
floor of the shop even with that of the house/kitchen? Hey, how about
a shop sink/eyewash station replete with drain?