Hi there,
There's loads of stuff you can photograph when you're stuck indoors, bog standard objects can take on seriously interesting charateristics when photographs close up and from angles they're not normally seen from. What about close ups of patterns, textures, hands, feet, small objects. Still lifes are interesting too with a bit of ingenious forethought. Or even time-lapse stuff out your window through the day, or through the seasons. Say, all the different people who walk past your window during the day?
Even with tungsten balance film you could work minor miracles, glass ornaments up real close so you can't see what they are without a bit of thinking, their reflections with different coloured reflectors, silver, gold, white, black etc.
If you've got a pet, stick a small back drop up somewhere a couple of lights some patience and a enquisitive four legged critter will pay dividends if you're waiting for them to look good rather than chasing them round the house.
Photography is in the head, anything can be photographed, it just depends on how its done, after all advertisers have been photographing rubbish for years and we still go out and buy it?
Paul Berry