WATERING: Most plants prefer to be kept evenly moist, but not soaking wet. Ivy, Olives, Euonymus and the Herbs prefer to dry slightly before being watered. Feel the soil often to determine when to water. Carefully pour water on the surface of the soil until some drains out of the bottom. Do not allow any plant to stand in water.
LIGHT: Most plants require a fair bit of light when placed indoors. Note that placement directly in a west or south facing window can be too much light and hear for most plants and will require very frequent watering. Filtered light from these windows is perfect, however, as is placement in a north or east facing window. If no natural light is available, artificial light no further than one foot away is fine, as long as it is on at least eight hours a day. During the summer, placement of your plants in a shaded outdoor porch or patio is very beneficial as long as no direct afternoon sun is received.
FERTILIZER: Fertilize perhaps monthly while the plant is actively growing following the manufacturer's instructions. Don't fertilize a stressed plant as this will further stress the plants roots.
PESTS: Actively monitor your plants for signs of insects or disease. If caught early, most pests can be removed by simply squishing, rinsing, wiping or minor pruning. The best preventive measure is to rinse the entire plant (not the soil) in cool water weekly. The act of rinsing or sprinkling the leaves regularly helps to keep them clean, green and free of insects. If an infestation does occur use an appropriate pesticide and follow the manufacturer's instructions.
Once the plant is root bound, or just perhaps dries out too quickly to easily maintain, you may repot into a slightly larger pot, being careful not to over- or under-water the plant.