diff --git a/saucebrush/filters.py b/saucebrush/filters.py
index c292dfa..d2bfee8 100644
--- a/saucebrush/filters.py
+++ b/saucebrush/filters.py
@@ -361,8 +361,22 @@ class UnicodeFilter(Filter):
             if isinstance(value, str):
                 record[key] = unicode(value, self._encoding, self._errors)
             elif isinstance(value, unicode):
+                record[key] = value.decode(self._encoding, self._errors)
+        return record
+
+class StringFilter(Filter):
+    
+    def __init__(self, encoding='utf-8', errors='ignore'):
+        super(UnicodeFilter, self).__init__()
+        self._encoding = encoding
+        self._errors = errors
+    
+    def process_record(self, record):
+        for key, value in record.iteritems():
+            if isinstance(value, unicode):
                 record[key] = value.encode(self._encoding, self._errors)
         return record
+        
 
 ###########################
 ## Commonly Used Filters ##
diff --git a/saucebrush/utils.py b/saucebrush/utils.py
index 2085e7e..9f538f7 100644
--- a/saucebrush/utils.py
+++ b/saucebrush/utils.py
@@ -167,11 +167,11 @@ def dotted_key_set(dict_or_list, dotted_key, value, separator='.'):
 
 class Files(object):
 
-    def __init__(self, file_open_callback=None, *args):
+    def __init__(self, *args):
         self.paths = []
         for arg in args:
             self.add(arg)
-        self.file_open_callback = file_open_callback
+        self.file_open_callback = None
 
     def add(self, path):
         self.paths.append(path)
@@ -180,9 +180,11 @@ class Files(object):
         return self.linereader()
 
     def linereader(self):
+        import os
         for path in iter(self.paths):
             if os.path.exists(path):
-                self.file_open_callback(path)
+                if self.file_open_callback:
+                    self.file_open_callback(path)
                 f = open(path)
                 for line in f:
                     yield line