diff --git a/todo.md b/todo.md
new file mode 100644
index 0000000..960cc94
--- /dev/null
+++ b/todo.md
@@ -0,0 +1,16 @@
+# To do
+
+* Automate creation of left/right side ports for connectors
+* Distinguish between loose wire bundles and cables (with wire numbers, optional shield)
+* Add connector parameters
+  * Connector type
+  * Connector subtype (male/female/other)
+  * Explicitly list pin count?
+* Add cable parameters
+  * Cable type
+  * Number of wires
+  * Cross-section / AWG Number
+  * Length
+  * Shield
+* Add support for cable splicing (as connector type)
+* Display picture of connector underneath (including pin 1 location)