"Your cellphone loses its battery charge too quickly while idle in your pocket? (...) To keep the phone cooler, carry it in your purse or on your belt. This same science can be used to preserve your battery, should you find yourself on a trip without your charger. Turn off the phone and put it in the hotel refrigerator overnight to slow the battery's natural tendency to lose its charge."
"Your remote car-door opener will not reach your car from across the parking lot? Touch the metal key part of your key fob to your chin and hold it there as you push the Unlock button. The trick turns your head into an antenna, said Tim Pozar, a Silicon Valley radio engineer -You are capacitively coupling the fob to your head - he said - With all the fluids in your head it ends up being a nice conductor. Not a great one, but it works."
"Your printer's ink cartridge has run dry near the end of an important printout? Remove the cartridge and focus a hair dryer on it for two to three minutes. Then place the cartridge back in the printer and try again while it is still warm."