Let’s say you copy and paste an XML TextView:
<TextView android:id="@+id/whatever" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/copy_pasted_string"/>
You probably won’t have the “copy_pasted_string” defined in the strings.xml file, and creating it manually is slow.
On Eclipse, place the mouse over the “copy_pasted_string” text, press CTRL+1 then click “Rename Android resource”.
It will create a new strings.xml entry, plus a new R.string resource in the R.java file.
Saved me thousands of seconds of routinary work!