"you've just done in two hours what it takes the three of us two days to do my college roommate was working at retail electronics store in the early occasionallythe store would receive spreadsheet of thousands of product prices from other stores team of three employees would print the spreadsheet onto thick stack of paper and split it among themselves for each product pricethey would look up their store' price and note all the products that their competitors sold for less it usually took couple of days "you knowi could write program to do that if you have the original file for the printouts,my roommate told themwhen he saw them sitting on the floor with papers scattered and stacked all around after couple of hourshe had short program that read competitor' price from filefound the product in the store' databaseand noted whether the competitor was cheaper he was still new to programmingso he spent most of his time looking up documentation in programming