Eazytensions 
Helpers and extensions functions are so common today, and usually we need to import in every project that you start.
Activity
Activity.hideKeyboard()
Button
Button.underline()
Fragment
Fragment.onNavigate(directions: NavDirections)
Fragment.onNavigate(directions: NavDirections, args: Bundle)
View.snackbar(message: CharSequence)
IO
Bitmap.toByteArray()
Bitmap.resizeBitmap
String
String.normalize()
Int.convertToText(context: Context): String
ArrayList<Int>.stringify(): String
Questions
Questions regarding Eazytensions can be asked on StackOverflow, using the eazytensions tag.