@Toni,
I too have that electric outlet above my workbench on the shop ceiling, and added a retractable extension cord on a reel package to it, so I can pull it down to reach the bench or anywhere nearby when needed. I also added some large hooks for the vacuum cleaner hose, and a plastic clothes line on a retractable reel to my shop ceiling above the workbench.
Why the clothes line reel? Whenever I'm using a random orbit sander or other hand held sanders, I bundle the power cord, vacuum line together, and add the end of the clothes line at the needed place along this bundle so the vacuum line and power cord bundle is supported above what I'm sanding, with just enough slack in the bundle to hold it above the work piece and yet not be pulling the sander up. The attachment is via one of those Velcro Cable ties that I always leave attached to the plastic fitting on the end of the clothes line and ready to be used again at the perfect place to hold the bundle at the desired height. I had to remove a turn or two of spring tension from the clothes line reel for it to lift the way that I wanted though, as it was too strong for my need without this modification.
This has proven to be the perfect way of sanding flat work for me. My vacuum unit is a reborn whole house central vacuum unit that I saved from a major remodel of the home next door. I replaced the control circuit transformer in it and it works fine again. When I saw the next door home owner carrying it to the dumpster I asked if I could have it, and he brought it over to me. Over the next few days, the hose and attachments also arrived. Another day, and all of the house PVC vacuum lines and wall inlets arrived too. After repairing it I installed it in my shop with the unit itself installed up in the shop's attic (no room in my small shop). I added a Dust Deputy centrifugal separator in the vacuum line just ahead of the vacuum, with a 24 gallon steel drum under the Dust Deputy to catch the big stuff. The vacuum exhaust was routed out through the shop's roof soffit, so nothing, even the finest of saw dust ever gets back into my shop or my lungs.
My shop is too small for the big woodworking dust/chip collectors, but this repurposed central vacuum house unit has been ideal for the drill presses, bench sanders, band saw, scroll saws, and ROS sanders, which make most of the "dangerous to breathe" saw dust. My table saw and jointer have collection space in their cabinets and I shovel them out frequently. Big chips aren't a health hazard either. My DeWalt 735 planer always gets used outside in the driveway, with a collection hose and a 55 gallon collection drum. The drum cover is fabric with a bag style cord tie to hold it onto the drum, and it works well, if this cover does not come loose. If it does (did 1 time) I get to clean the chips out of my neighbor's swimming pool.
One of these central vacuum units is ideal for a small shop, if you add a Dust Deputy or similar separator in the vacuum line ahead of it. They pull significant vacuum, enough to quickly collapse a 5 gallon plastic collection drum very quickly. I was using one at first, and collapsed it almost instantly. While looking for the steel drum, I ended up stacking three of the plastic drums tightly together for 3X the wall thickness and this worked well until I could find the small steel drum. Trucking service facilities buy grease in these
,with a plastic bag liner, so no significant amount of grease to remove. Asking around might get you one for free, or maybe a 6 pack of his favorite beer. I made the round top out of two layers of void free 3/4" Birch cabinet plywood, one that fit snugly inside the barrel and one about 1-2" larger in diameter to the barrel. I used caulking compound to glue them together, and cut the center hole and mounting bolt holes for the dust Deputy. I used 1" wide closed cell foam plastic Weather strip attached around the smaller diameter piece but on the larger diameter piece, so it seals to the top rolled edge of the steel drum/barrel. Perfect seal on the first try. On a year when I was doing significant woodworking, I only managed to 1/2 fill this steel drum. The collection place in the bottom of the central vacuum only had a trace of saw dust on it's walls and nothing in the cloth filter. I ended up completely removing the cloth filter after that first year and now get a bit better vacuum. It wasn't collecting anything anyway, so why leave it there. The Dust Deputy does a great job.
Charley