We've been working on reducing the load on the AC system for these hot summer months, after doing our windshield with the Reflectix insulation, we bought some of those little pillows to put in the Ceiling Vents, but couldn't find anything to do the shower skylight. So... did some looking and found a 27" square 3" thick piece of foam on ebay for $27.50, and used some a scrap piece of Reflectix left over from the windshield project which we used spray adhesive to attach it to the foam.
Seems to work pretty good, now maybe my dog will sleep past sun-up when we're out in the RV! I'm sure it'll help a bit with the heat coming in the skylight too.
Got a lot of projects done on the Coach this weekend, replaced the striker pin on the door and readjusted door latch. Shuts much better now - hopefully won't have any wind noise going down the road. Replaced one of the ceiling vent fans, fixed the vent fan in the bathroom, fixed all the clearance lights and cleaned the front AC condenser and evaporator.