diff --git a/example/main.py b/example/main.py
index ae68a4f..1db3f86 100644
--- a/example/main.py
+++ b/example/main.py
@@ -9,19 +9,27 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 You should have received a copy of the GNU General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
 """
 
+# import library and the garbage collector - nothing more
 from ProgramChooser import ProgramChooser
+import gc  # garbage collector for better memory performance
 
+
+# extra functions to access the garbage collector
 def randomblink():
     import randomblink
     randomblink.run()
+    gc.collect()
+
 def lcd_big_hello():
     import lcd_big_hello
     lcd_big_hello.run()
+    gc.collect()
 
+# create a programs dict, where the items are callables (functions)
 programs = {
     "randomblink": randomblink,
     "lcd_big_hello": lcd_big_hello
     }
 
-pc = ProgramChooser(programs, 7, 8, debug=True)
-pc.run()
+pc = ProgramChooser(programs, 7, 8, debug=True)  # initialize the ProgramChooser
+pc.run()  # and run it (will be an endless loop)