We replaced the electrical outlets in a house when painting trim and realized afterwards code requires tamper resistant outlets now...never even knew they existed and got standard ones.

Landlord will clean and repair gutters, downspouts, and trim trees when necessary.

Trim on the bottom of the wall has not been installed. 

I go for granite, hardwood, wood or marble look tile, quality vinyl plank, trendy grey walls with white trim, stainless appliances.

If you need a house jacked up at a corner, that's a first thing to do issue as it plays on the inside work with floors, trim and walls and flows through to celings and roof.

Trim color different than walls.Vertical blinds on large windows vs vinyl horizontal.Permanent LED lighting.Laminate floors where possible vs vinyl sheetgoods.New doors and hardware if standard size and therefore easy to change.Lock on front door with keypad and/or bluetooth.Paint garage floor.

Trim away as much fat as possible (like trading down in automobile if at all possible), stop dumping money into the 401k for a while, and try combining your desires to buy your own place and invest in real estate by "house hacking," where you live in one of the units of a multiplex while renting the others.