Use chintzes in your apartment, if you wish, but do not risk the light ones in living-rooms. A chintz or printed linen of some good design on a ground of mauve, blue, gray or black will decorate your apartment adequately, if you make straight side curtains of it, and cover one chair and possibly a stool with it. Don't carry it too far. If your rooms are small, have your side curtains of coarse linen or raw silk in dull blue, orange, brown, or whatever color you choose as the key color of your room, and then select a dark chintz with your chosen color dominant in its design, and cover your one big chair with that.
The apartment hall is most difficult, usually long and narrow and uninteresting. Don't try to have furniture in a hall of this kind. A small table near the front door, a good tile for umbrellas, etc., a good mirror--that is all. Perhaps a place for coats and hats, but some halls are too narrow for a card table.
The apartment with a dining-room entirely separated from the living-room is very unusual, therefore I am hoping that you will apply all that I have said about the treatment of your living-room to your dining-room as well. People who live in apartments are very foolish if they cut off a room so little used as a dining-room and furnish it as if it belonged to a huge house. Why not make it a dining-and book-room, using the big table for reading, between meals, and having your bookshelves so built that they will be in harmony with your china shelves? Keep all your glass and silver and china in the kitchen, or butler's pantry, and display only the excellent things--the old china, the pewter tankard, the brass caddy, and so forth,--in the dining-room.
However, if you have a real dining-room in your apartment, do try to have chairs that will be comfortable, for you can't afford to have uncomfortable things in so small a space! Windsor chairs and rush bottom chairs are best of all for a simple dining-room, I think, though the revival of painted furniture has brought about a new interest in the old flare-back chairs, painted with dull, soft colored posies on a ground of dull green or gray or black. These chairs would be charming in a small cottage dining-room, but they might not "wear well" in a city apartment.