Apple iPhone

OK I WAS HAVING ISSUES WITH MY I PHONE RUNNING SLOW REALLY SLOW. THEN ONE DAY IT JUST TURNED OFF AND I COULD NOT DO ANYTHING. I WAS AT THE LEAST MAD AS HELL. I PAID ALL THIS MONEY AND MY PHONE WAS NOT WORKING AT ALL. I WENT TO THE NEAREST APPLE STORE AND THEY SHOWED ME HOW TO DO A COLD RESET. YOU HOLD DOWN THE MAIN BUTTON IN THE MIDDLE AND THE POWER BUTTON AT THE SAME TIME UNTIL YOU SEE THE SILVER APPLE LOGO. I WAS AMAZED ON HOW EASY IT WAS. I JUST THOUGHT I WOULD PUT THIS OUT THERE FOR ALL SO YOU DON'T HAVE TO GO THROUGH WHAT I DID. THE REP AT THE APPLE STORE TOLD ME TO DO THIS EVERY TWO WEEKS TO A MONTH TO FREE UP MEMORY SO IT WILL NOT HAPPEN AGAIN. THANKS APPLE FOR THE QUICK SERVICE.