diff --git a/ex18.rb b/ex18.rb
new file mode 100644
index 0000000..d7e1b37
--- /dev/null
+++ b/ex18.rb
@@ -0,0 +1,25 @@
+# this one is like your scripts with argv
+def puts_two(*args)
+  arg1, arg2 = args
+  puts "arg1: #{arg1}, arg2: #{arg2}"
+end
+
+# ok, that *args is actually pointless, we can just do this
+def puts_two_again(arg1, arg2)
+  puts "arg1: #{arg1}, arg2: #{arg2}"
+end
+
+# this just takes one argument
+def puts_one(arg1)
+  puts "arg1: #{arg1}"
+end
+
+# this one takes no arguments
+def puts_none()
+  puts "I got nothin'."
+end
+
+puts_two("Zed", "Shaw")
+puts_two_again("Zed", "Shaw")
+puts_one("First!")
+puts_none()