For smaller clogs, snaking your own drain is possible. Routine, minor sink clogs from hairballs or food remnants are typically located in the u-shaped trap directly below the sink or only a few feet deeper in the drainpipe. They may be cleared by using a light-gauge, hand-operated auger.
What can I use instead of a drain snake?
You can also make your own drain snake at home with a pipe cleaner or a wire hanger. Cut a 2-liter bottle into a spiral with "teeth" in it, which is a very effective and cheap alternative to store bought drain snakes. Wet and dry vacuums are powerful appliances with a lot of suction.