A door with inset glass can really bring in a lot more light, as well as create the feeling of greater space:
A bulky shower cabin can be replaced by a smaller booth in the corner of the room, with a drainage grate in the floor:
A triangular bath tub instead of a square one can really help to economise on space:
Selecting a bright decor can help make a small space much more cheerful:
Placing all the major elements of the bathroom in the corners can get rid of that cramped feeling:
A sit-in bath is also not a bad choice for some small bathrooms if you want to save space:
You can replace a bath tub with a spacious shower cubicle:
Opting for brass fixtures and a retro design can give even a small bathroom a truly luxurious feel: