The best spot
A light spot for most orchids is best, but no direct sunlight.
Depending on the variety, most orchids do well between 18-24 ˚C.
Avoid overwatering which leads to the demise of many more orchids than underwatering. Constant wetness will cause the roots to rot, which leaves the plant without a means for taking up nourishment which then causes the leaves to droop and will eventually kill the plant. The classic advice is to water the day before the plant dries out. Dip 10 minutes in lukewarm and let it leak out afterwards.
Of all of the more commonly available orchids, only Phalaenopsis (the moth orchid) will re-bloom from its old spike. For most other orchids it is best to cut off the stem entirely at the base where it comes out of the leaves to let it bloom again in several months. Orchids, like animals, are susceptible to viruses, so whenever cutting an orchid plant always use a sterile tool to prevent the spread of virus. A straight edged razor blade is a good tool to use for cutting flower spikes.
Click the varieties below to see larger images.