If your toilet becomes clogged, use a plunger to attempt to push anything stuck in the system through the pipes.
Be careful when attempting to remove the clog and do not flush repeatedly, or you may cause the basin to overflow and flood your bathroom.
If your bathtub, sink, or shower drains aren't draining properly, there is likely debris in the pipe. Consider installing drain catches to keep excess debris from making its way into your plumbing system.
Slow drains can often be improved with cleaning products designed to remove any blockages. If using cleaning chemicals, be sure to purchase safe, non-caustic products that will not damage your plumbing system.
If you lose electrical power, first check your circuit breaker. If you accidentally trip the breaker, you'll lose access to electrical power. Flip the lever back to the ON position and work to identify what caused the problem to avoid the issue moving forward.
If your circuit breaker hasn't tripped, call your utility company. They should be able to help you determine if there are outages in your neighborhood or problems with your account. If the issue is localized, they should be able to provide advice to resolve it.