Regarding the floor HVAC grills; I believe they are wall-mounted (of the forced air variety).
I will check for H/W flooring in an inconspicuous area, or in a room, if any, where I know I want new carpeting regardless.
I wanted to resize the area (by knocking the dividing wall down) containing the bathroom and adjoining 1/2 bath room, so that it could become 2 bathrooms.
However, it may make more sense to make a new bathroom on the main floor, if feasible (due to space constraints etc.)
I don't know if I would try installing a new (bay) window on my own, especially since I want it to extend down further than the existing window, which isn't 'tall'.
I know I could manage painting and stripping wallpaper myself, but i am not sure whether I'll go professional instead.
I did install a sink, faucet, water lines (flexible), stopper etc. and the part of the piping that goes into the elbow. After 7 years or so, it still looks and works great.
All that because of a small chip in the original sink; I know, I was crazy!
It was actually a rewarding, albeit relatively small, project.
I would like to strip and treat/varnish (whatever you call it) the deck myself.
Someone decided to paint it an ugly brown, and the paint is peeling.
I also need to decide about mowing the lawn myself or getting a contract for a landscaping company to do it.
I also need to decide about the weeding and maintenance of the grass etc. I know people have annual contracts to have this work performed.
I think I could read up on it and do it myself.
I will definitely buy a good snowblower for the drive. Luckily my new street has no sidewalks
I am not paying someone to do it each time it snows.
The only thing might be neighbors w/o snowblowers asking for a favor, which could get out of hand, if it starts to occur too frequently.