diff --git a/smartapps/nick257/shut-the-windows.src/shut-the-windows.groovy b/smartapps/nick257/shut-the-windows.src/shut-the-windows.groovy
new file mode 100644
index 0000000..d8d3c43
--- /dev/null
+++ b/smartapps/nick257/shut-the-windows.src/shut-the-windows.groovy
@@ -0,0 +1,73 @@
+definition(
+    name: "Shut the windows!",
+    namespace: "nick257",
+    author: "Nick Mahon",
+    description: "Notifies when last person leaves without closing doors or windows.",
+    category: "Safety & Security",
+    iconUrl: "https://s3.amazonaws.com/smartapp-icons/ModeMagic/bon-voyage.png",
+    iconX2Url: "https://s3.amazonaws.com/smartapp-icons/ModeMagic/bon-voyage%402x.png"
+)
+
+preferences 
+{
+	section("As the last of these persons leaves") {
+		input "people", "capability.presenceSensor", multiple: true
+	}
+	section("Check that these are closed") {
+		input "doors", "capability.contactSensor", multiple: true
+	}
+    section("Send Push Notification?") {
+		input "sendPush", "bool", required: false,
+		title: "Send Push Notification when Opened?"
+	}
+	section("Send a text message to this number (optional)") {
+	input "phone", "phone", required: false
+	}
+}
+
+
+def installed() {
+	log.debug "Installed with settings: ${settings}"
+	initialize()
+}
+
+def updated() {
+	log.debug "Updated with settings: ${settings}"
+    unsubscribe()
+    initialize()
+}
+
+def initialize() {
+	subscribe(people, "presence", presence)
+}
+
+def presence(evt)
+{
+	log.debug "evt.name: $evt.value, $evt.deviceId"
+	if (evt.value == "not present") {
+    	log.debug "isSomeonePresent()? ${isSomeonePresent()}"
+        log.debug "isDoorsOpen()? ${isDoorsOpen()}"
+    	if (!isSomeonePresent() && isDoorsOpen()) {
+        	def device = people.find { it.id == evt.deviceId }
+            log.debug "${device.displayName} left ${location.name} without closing ${isDoorsOpen().join(", ")}"
+            
+            def message = "${device.displayName} left ${location.name} without closing ${isDoorsOpen().join(", ")}"
+			if (sendPush) {
+				sendPush(message)
+			}
+			if (phone) {
+				sendSms(phone, message)
+			}
+		}
+	}
+}
+
+def isSomeonePresent() {
+	log.debug "presence: $people.currentPresence"
+    people.findAll{it.currentPresence == "present"}
+}
+
+def isDoorsOpen() {
+	log.debug "doorss: $doors.currentContact"
+	doors.findAll{it.currentContact == "open"}
+}