Also if this is a property you are considering, I would ask for the paperwork from when the roof was installed. 

Pretty much just installing curtain rods, changing the thermostat, and painting.

Add backerboard and ceramic tile all over.Would the soft and squishy or the stiff approach work better?

Since the home has vinyl siding, that probably won't do any good because it was probably installed after the cracks appeared.I would carefully inspect inside for signs of water intrusion.

And what is the brand/name of tile in the bathroom?

This can mean something as simple as having foundation flood vents installed for a crawl space or garage.

Paying off your installment car loan will hurt your score.

I have replaced a water heater, furnace, bathroom sink, gas range and I am having new doors installed.

Fixture/faucet finishes (chrome, oil rubbed bronze, brushed Nickel, rubbed brass) Appliances (stainless, smudge free stainless, black, white)Lighting fixtures (recessed 3" 4" 6", ceiling fans, island drop lights, under cabinet lighting)Fireplaces (gas, wood, tile surround, stone suround, wood block mantle)Carpet stylesLandscapingEct...Post some pictures if you'd like of recent rehabs you have completed or are currently working on that you think appeal to the masses in your area. 

No personal sweat-equity rehab projects; I'm busy with my day job and I don't have time to replace a roof or install a new furnace myself (not to mention that even if I did have the time I couldn't transport it).