Some houseplants such as spider plant and strawberry begonia reproduce by sending out runners with new plantlets at the end. It's super simple to root these to start new plants.
Other varieties such as bromeliads send up new shoots at the base of the plant or offsets, which you can divide and put into pots.
Climbing houseplants such as philodendron and pothos form new roots where their stems come into contact with soil. Or start new plants from cuttings or by air layering houseplants with woody stems.
Continued on page 2: Repotting