diff --git a/utils.py b/utils.py
new file mode 100644
index 0000000..5915db9
--- /dev/null
+++ b/utils.py
@@ -0,0 +1,22 @@
+"""
+A set of common utilities.
+"""
+
+def inputYN(text: str, default: bool=None):
+    """
+    Prompty the user with a yes/no prompt.
+
+    Args:
+        text (str): The text displayed to the user.
+        default (bool): The default answer.
+    """
+
+    while True:
+        i = input(text)
+
+        if i.lower() in ['1', 'y', 'yes']:
+            return True
+        if i.lower() in ['0', 'n', 'no']:
+            return False
+        if default is not None and i == '':
+            return default