diff --git a/README.md b/README.md
index 7c7835c..a0837f8 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,12 @@ Simple plain-text time tracking.
 
 The Python script `tx` provides short-hands for accessing and reading a `time.txt` file, as described below.
 
+## Installation
+
+For testing, you can just run `tx` in this directory using `./tx`.
+
+If you want to be able to use it anywhere, run `install.sh`. The `tx` command should then be available in any folder.
+
 ## Usage
 
 Create a new `time.txt` file at the current location: `tx create`
diff --git a/install.sh b/install.sh
new file mode 100755
index 0000000..0bb935b
--- /dev/null
+++ b/install.sh
@@ -0,0 +1 @@
+sudo ln -s $(pwd)/tx /usr/local/bin/tx