Sink & Shower Clogs
If your sink or shower isn't draining properly, you may have a small clog in your pipe. Surface clogs can often be fished out using a cleaning tool like a Zip-it. Many hardware stores sell these.
Please do not pour chemicals down the drain, as these could potentially damage the plumbing system.
You may also want to consider installing a drain catcher for hair to prevent future clogs.
Toilet Clogs
If your toilet won't flush, use a plunger to dislodge the clog from the pipe. If you are successful in dislodging the clog, the basin should drain on its own.