The Philodendron, specifically the "Heart leaf philodendron ( pothos ) " was the very first plant I ever owned. I was lucky enough to get one for my birthday 2 years ago and it hasn't stopped growing since. The pothos plant tends to dangle down from it's pot, which makes it a great plant to hang on tall bookshelves, in hanging pots or even curl the leaves around windows. They thrive on neglect and are very difficult to kill - they are also great to clean and purify the air.
Watering Philodendrons are easy. Give it a good drink once every week or two or until 50% of the soil in the pot has dried. If the heart leaf philodendron is overwatered, their leaves will turn yellow. And if under watered, their leaves will turn brown.
Philodendrons usually need bright - moderate light to grow well. Small leaves or spaces between in which your plant grows, is a good indicator that you should move your philodendron into a brighter location - just not in direct sun though.
A good idea if your philodendron is getting too long, is to propagate it. All you need to do is take some stem tip cuttings and pop them into a jar / vase with some fresh water. It roots easily in water or moist soil, and it's a way to have numerous pots of the same plant throughout your house without needing to buy the same plant again - and they are great gifts too for friends & family. All you need to do once they have been put in water, is to wait a few months until you can see roots are starting to form on the cuttings. Once they are long enough, pop them in a pot with some potting mix, and you are done!