Shower Head erratic or weak:
This usually indiicates mineral build up. Clean outlet holes with a pin, or you can unscrew the the face plate and soak it overnight in vinegar, then scrub it clean.
If you see the water level rising in the toilet, quickly remove the tank lid and reach down and push the flapper closed. It covers the tennis ball sized opening in the bottom of the tank. Now all you have to do is unclogg the toilet.
Eliminate cold sweating pipes during the summer months:
Place foam pipe insulation over the pipes. The tubing keeps the warm humid air from condensing on the cold pipes.