diff --git a/README b/README
index 71ee76e..512b495 100644
--- a/README
+++ b/README
@@ -61,7 +61,6 @@ gobyexample.com signups
 * hipache port
 * templating
 * ssh
-* environment variables
 * dns
 * timers
 * tty
@@ -78,6 +77,10 @@ gobyexample.com signups
 * oauth for google domains
 * connection pool
 * typed json parse/unparse
+
+* deploying to heroku
+* shipping a package (structure, github, docs)
+
 * blackfriday
 
 = program ideas
diff --git a/src/xx-env.go b/src/xx-env.go
new file mode 100644
index 0000000..3f23ab2
--- /dev/null
+++ b/src/xx-env.go
@@ -0,0 +1,17 @@
+package main
+
+import ("os"; "fmt"; "strings")
+
+func main() {
+	for _, e := range os.Environ() {
+		pair := strings.Split(e, "=")
+		fmt.Println(pair[0], pair[1])
+	}
+	fmt.Println()
+
+	fmt.Println(os.Getenv("PWD"))
+	fmt.Println()
+
+	os.Setenv("FOO", "bar")
+	fmt.Println(os.Getenv("FOO"))
+}