Back when I was a student at the Nova Scotia Agricultural College, my room in residence resembled a miniature jungle. At one point, I had over 100 plants in that room, ranging from tiny lithops (living stones) to sprawling English ivy and philodendrons, to colourful African violets.
Although I don't have quite so many indoor plants these days, I still have quite a few. There has never been a time since I was in my mid-teens that I haven't had houseplants, and I can't imagine ever NOT having them. They are like cats in that respect--they are part of who I am.
Often when people come to visit, they admire my plants and tell me how they can't grow indoor plants because they have a black thumb. I don't accept that label, though. As with gardening outdoors, anyone can have great indoor plants. You just need to match your home conditions to the correct plants.
Happily, two new books have been published to help would-be indoor plant gardeners overcome their fear of failure.