title: storing preferences within the app to be used later
body: <p>How can I store a large float value, like 0.00032012 in the app?? I need to store that number, so when someone click a save preferences button, it stores a variable. Then when I relaunch the app, it will remember that number and post it in a text field. </p>
  
  <p>I was thinking of using plist, but how can I store variables in the plist??? Examples?</p>
  
  <p>Any ideas???</p>