diff --git a/aes.py b/aes.py
index cb33da2..c61fd0e 100755
--- a/aes.py
+++ b/aes.py
@@ -4,6 +4,7 @@
 import os, popen2
 
 class Cipher:
+    '''Cipher represents a particular hashing strategy (password, seed, and type). Cipher can encrypt or decrypt data.'''
     def __init__(self, password, seed='aes.py', hashtype='rmd160'):
         self.password = password
         self.seed     = seed
@@ -14,12 +15,13 @@ class Cipher:
         return decrypt_data(encrypted, self.password, self.seed, self.hashtype)
 
 def _check_aespipe():
+    '''This function checks if we have the "aespipe" binary in $PATH'''
     result = os.system('which aespipe > /dev/null')
     if result != 0:
         raise Exception, "Could not find aespipe; is it installed?"
 
 def encrypt_data(data, password, seed='aes.py', hashtype='rmd160'):
-    '''uses password to encrypt data'''
+    '''Uses password to encrypt data'''
     _check_aespipe()
     cmd = "aespipe -S '%s' -H '%s' -p 0" % (seed, hashtype)
     (stdout, stdin, stderr) = popen2.popen3(cmd)
@@ -33,14 +35,14 @@ def encrypt_data(data, password, seed='aes.py', hashtype='rmd160'):
     return encrypted
 
 def encrypt_path(path, data, password, seed='aes.py', hashtype='rmd160'):
-    '''uses password to encrypt data and writes result to path'''
+    '''Uses password to encrypt data and writes result to path'''
     encrypted = encrypt_data(data, password, seed, hashtype)
     f = open(path, 'w')
     f.write(encrypted)
     f.close()
 
 def decrypt_data(encrypted, password, seed='aes.py', hashtype='rmd160'):
-    '''uses password to decrypt data'''
+    '''Uses password to decrypt data'''
     _check_aespipe()
     cmd = "aespipe -d -S '%s' -H '%s' -p 0" % (seed, hashtype)
     (stdout, stdin, stderr) = popen2.popen3(cmd)
@@ -62,7 +64,7 @@ def decrypt_data(encrypted, password, seed='aes.py', hashtype='rmd160'):
     return data[:i]
 
 def decrypt_path(path, password, seed='aes.py', hashtype='rmd160'):
-    '''uses password to decrypt data from path'''
+    '''Uses password to decrypt data from path'''
     f = open(path, 'r')
     encrypted = f.read()
     f.close()
diff --git a/buffer.py b/buffer.py
index 547b77c..3491a5f 100644
--- a/buffer.py
+++ b/buffer.py
@@ -3,9 +3,9 @@ import aes, dirutil, regex, highlight
 from point import Point
 
 # undo/redo stack constants
-ACT_NORM = 0
-ACT_UNDO = 1
-ACT_REDO = 2
+ACT_NORM    = 0
+ACT_UNDO    = 1
+ACT_REDO    = 2
 STACK_LIMIT = 1024
 
 # used for undo/redo stacks when text will need to be added back