–A Zen saying… ” To climb a mountain, start at the top.“
Create a concept, brainstorm, mental imagery… do any thought process without concern for cost. If you lived in your home for a while, I’m sure there’s a few things that you’ve grown to hate that weren’t all that bad when you purchased. Or you overlooked them, knowing they’d be fixed later. Well later is coming. Start making a list. Organize the list by room. Or organize the list by problem areas. What you’re doing is developing a building program.
For example, when you moved in, you remembered having to take the hinges off the door to a bedroom or two. Why did you do that? Maybe you don’t care but good design considers these situations. Maybe the original home builder put a closet in a room and just bumped out the wall and getting into the room was no problem EXCEPT when you spent hours trying to get a dresser into the room.