There's a sign posted on the inside of the motel door, with all the rules about check-in, and check-out, etc. The door will usually have a peephole, and two locks. On the inside knob, there is a plastic hanger that has two options - one is for requesting maid service and the other is for privacy.
There's usually one big window with drapes.
A large heater / Ac combo unit that either stays full blast on - making it too hot or too cold, or it's off, making you too hot or too cold. When they work, that is.
The floors are usually covered with low carpeting. The beds are usually queen - with white sheets, two pillows, a blanket and a cheap bedspread.
There are usually two bedside tables, each with it's own lamp. One of these will have a telephone on it, so that you can call for room service, or dial 9 for outside calls. There's usually a charge for all calls, sometimes local calls are free.
There's usually cheap, large, framed pictures/prints on the walls. Seascapes, Magnolias, etc.
Across from the bed is usually a sideboard style desk - with a drawer that holds a bible, a pad of paper and sometimes a pen. There is usually a phonebook and sometimes ads for local businesses. Sometimes there are questionaires - like tattle sheets to see how clean the room was, etc. If the place is nice, there might be a room service menu, and sometimes there's a mini-fridge. Some of the mini-fridges are locked, and if you open it, it's full of soda, beer, wine, etc...if you consume them, the charges go on your bill. These charges are usually 2/3 times what the item is worth. Ditto with the bottles of water sitting on the desk - they aren't complimentary either.
There's always a mirror in the room. More lights on the walls.
A TV, either on a stand or bolted to a high shelf on the wall.
There's a place to hang your clothes, and the metal hangers are attached to the rod. There are usually bags for dirty laundry.
There is usually a round table with two chairs. Ashtrays if it's a smoking room. Matches if it's a smoking room.
The bathroom will have a stand-up tub/shower enclosure - with samples of soap, shampoo and conditioner. There are stacks of folded towels and washcloths in the bathroom - sometimes on a metal rack. The toilet has a paper sanitary ring on it - keeping the bottom two layers closed so that, when you open the seat - the paper ring breaks. This is supposed to ensure you that the toilet was cleaned.
There's a small plastic trashcan in the bathroom, lined with a small plastic bag. There is usually another one in the main room.
That's about it.