diff --git a/_site/util.go b/_site/util.go
new file mode 100644
index 0000000..1715458
--- /dev/null
+++ b/_site/util.go
@@ -0,0 +1,31 @@
+package gophercloud
+
+import (
+	"fmt"
+	"strings"
+	"time"
+)
+
+// WaitFor polls a predicate function once per second up to secs times to wait for a certain state to arrive.
+func WaitFor(secs int, predicate func() (bool, error)) error {
+	for i := 0; i < secs; i++ {
+		time.Sleep(1 * time.Second)
+
+		satisfied, err := predicate()
+		if err != nil {
+			return err
+		}
+		if satisfied {
+			return nil
+		}
+	}
+	return fmt.Errorf("Time out in WaitFor.")
+}
+
+// NormalizeURL ensures that each endpoint URL has a closing `/`, as expected by ServiceClient.
+func NormalizeURL(url string) string {
+	if !strings.HasSuffix(url, "/") {
+		return url + "/"
+	}
+	return url
+}