Leave some breadcrumbs.
diff --git a/README.md b/README.md
index 664e58f..a1d7d5f 100644
--- a/README.md
+++ b/README.md
@@ -4,3 +4,16 @@
Work in progress.
+
+TODO
+====
+1. `f32` and `f64` support. (trivial)
+2. Flesh out the README. (Install, examples, links to docs, limitations.)
+
+
+Ideas?
+======
+Use the `rustc-serialize` infrastructure, but it is known to be Not Fast. So
+I'm skeptical of how useful it would be. Basically, it would let you say
+something like: `let n: u32 = rdr.decode::<BigEndian>()` as opposed to
+`let n = rdr.read_u32::<BigEndian>()`. Doesn't seem like an obvious win.
