Temperature:
Plants actually like the same temperatures as humans. So make sure that you keep your plants away from heaters, air-conditioners, near drafts, and on windowsills behind curtains. If you do keep plants near windows, the best place is about 3 feet away. It can still get sun, but the temperature is more temperate.
Cleaning:
Cleaning plants is a plant chore that most people aren’t aware of. Cleaning the leaves with a damp cloth or paintbrush is the most efficient way to make sure that the leaves are absorbing as much sun as they can.
Wilting:
Plants can wilt due to under-watering or over-watering. In order to tell the difference, check the moisture of the soil it is in. If the soil is dry, it needs more water. If the soil is moist, the plant should be repotted. To ensure that the plant survives, wrap the roots with newspaper or paper towels. Continue to replace either until they have soaked up all the moisture. Repot the plant into fresh potting mix and keep it out of direct sunlight.
(All of these tips are from the book How Not to Kill Your Houseplant: Survival Tips for the Horticulturally Challenged. By: Veronica Peerless)