Yo Geoff
I put a roller blind with a cute chain mechanism thingy on the new little window above the bed position in the main bedroom.
The blind has a pretty 'georgian scallop' trim, and looks a treat.
I once had full height (1.85m) holland blinds over full length windows, and more than once they sprung off their springs and embedded the pointy end in the hardwood timber floor. Tres dangerous! Not a good look for above a bed!
Sam, just a common or garden plastic micro venetian from Bunnings or similar is good for above the sink windows. At a pinch, they can be lifted off their clip fittings, hung on the Hills hoist, soaped and hosed clean. I've done that more than once and the blinds come up sparkling. You can then get the soapy steelo soap pads onto the kitchen window, and remove all the bits of hardened washing up non-biodegradable nucleur waste, rinse well, and have a diamond clean window.
When I had a child care centre (it's national nostalgia day today) the window cleaner used steel wool to remove all the bits of blue tak and hardened cellotape gum from the windows (plus the slobber and nose pickings). He always produced a magical finish on the glass, inside and out, which lasted about one day on average but was great while it lasted.
Cheers
Kristine