diff --git a/pomodoroprompt.py b/pomodoroprompt.py
index 88771b4..dfd881a 100644
--- a/pomodoroprompt.py
+++ b/pomodoroprompt.py
@@ -1,3 +1,4 @@
+import sys
 import csv
 import time
 from datetime import datetime, timedelta
@@ -15,6 +16,8 @@ INTERRUPTED_MIN = 1 # Minimum minutes to ask to record an interrupted Pomodoro
 
 
 def pomodoro_prompt_plan(whatdid = ''):
+    """ Ask about what task will be worked on (showing last thing worked on)
+    """
     title = "What're you gonna do?"
     text = ''
     # Instead of repeating this, i'd prefer a clean interface with the ability to get back
@@ -31,6 +34,8 @@ def pomodoro_prompt_plan(whatdid = ''):
     return whatnext
 
 def pomodoro_prompt_report(whatnext):
+    """ Ask what task was completed, showing the last task claimed to be being worked on
+    """
     title = "What'd you do?"
     text = ''
     if whatnext:
@@ -42,16 +47,20 @@ def pomodoro_prompt_report(whatnext):
     return whatdid
 
 def quit_prompt():
+    """ Confirm exit or start a new pomodoro
+    """
     print('\nPress p to start a new pomodoro, q to quit')
-    choice = input('p/q: ').strip()
-    if choice.lower() in ('p', 'pomodoro'):
+    choice = input('p/q: ').strip().lower()
+    if choice in ('p', 'pomodoro'):
         return
-    elif choice.lower() in ('q', 'quit', 'exit'):
-        quit()
+    elif choice in ('q', 'quit', 'exit'):
+        sys.exit(0)
     else:
         quit_prompt()
 
 def log_step(text, utc_start, end_section=False):
+    """ Write detailed log of all events
+    """
     eastern = timezone('US/Eastern')
     start = utc_start.astimezone(eastern)
     timelog_path = 'log/' + str(start.year) + '-' + format(start.month, '02') + '-' + format(start.day, '02') + '.log'
@@ -64,6 +73,8 @@ def log_step(text, utc_start, end_section=False):
 
 
 def record_task(whatdid, start, end=None):
+    """ Record completed pomodoro to CSV
+    """
     if end is None:
         end = datetime.now(pytz.utc)
     with open('timelog.csv', 'a', newline='') as csvfile: