I took the one off the furnace in my own house shortly after we moved in for that very reason ... it, and the ducts, were a little furry and took a great deal of disassembly and time with a roto-brush vacuum to clean.

Also anyone familiar with clearing land, trees, brush (burning?) 

much like Canadian real estate you can't paint the whole province with the same brush.

There is a downed tree in the yard, brush everywhere in the yard and on the roof...and I have heard nothing from the PM.

You may learn you can make better money without slinging a paint brush, as fun as that is, learn first, then see what the best use of your time is and where your talents are, construction is a skill and can take time to acquire skills and knowledge in all aspects of a reno.

If you accidently kick over your paint can a clean work area will clean up easier then a cluttered area.good brushes are worth their weight in copperbecause good brushes offer better coverage better coverage means less time.if a friend stops by to watch ask them to remove or reinstall the switch plates this will save you time later so you can get back to the game.Take your time. ok sounds counter intuitive lazy people want to be done faster right?

I will need to brush up on the various most commonly terminology used in probate.

I have a Maine coon who gets brushed weekly and leaves fur everywhere

I need to brush up on wholesaling tactics but think it would be extra difficult as you'd need to secure 2 adjacent houses to make it work haha.A house in the area I'm talking about might go for $350,000 normally. 

Tip:  You can use a wet 3M 320 grit sponge between primer coats if they need to be smoothed more or to get out any possible brush strokes or dings.