diff --git a/extension.js b/extension.js
index 6a9bbda..7242506 100644
--- a/extension.js
+++ b/extension.js
@@ -27,53 +27,100 @@ function activate(context) {
 
 
     context.subscriptions.push(vscode.commands.registerTextEditorCommand('extension.nextNoteOpenCurrentWeek', function () {
-        var basedir = process.env["NOTEDIR"];
-
-        if (!basedir) {
-            basedir = process.env["HOME"]+"/Notes";
-            console.log("next-note: no basedir. Using "+basedir);
-            console.log("next-note: set NOTEDIR to use a diferent basedir");
-        }
         try {
-            fs.statSync(basedir);
+            var basedir = getBasedir();
          } catch(e) {
-            try {
-                fs.mkdirSync(basedir);
-            } catch(e) {
-                vscode.window.showErrorMessage("next-note: failed to make directory: "+basedir);
-                return
-            } 
+            vscode.window.showErrorMessage("next-note: failed to make directory: "+basedir);
+            return;
         }
 
         var notepath = basedir +"/"+ currentWeekFilename();
-        fs.access(notepath, fs.constants.R_OK | fs.constants.W_OK, (err) => {
-            if (err) {
-                try {
-                    fs.writeFileSync(notepath, dateLine());
-                } catch (e) {
-                    vscode.window.showErrorMessage("next-note: failed to create "+ notepath);
-                    console.error(e);
-                    return;
-                }
-            } 
-        });
-        vscode.workspace.openTextDocument(notepath).then(doc => {
-            vscode.window.showTextDocument(doc);
-            vscode.window.activeTextEditor.selection.active.line += 1;
-        });
+
+        openNote(notepath);
     }));
 }
 exports.activate = activate;
 
+
+// this method is called when your extension is deactivated
+function deactivate() {
+    console.log("next-note: deactivated")
+}
+exports.deactivate = deactivate;
+
+/**
+ * opens filepath in the current window, creating the file if needed
+ * 
+ * @param {String} filepath is the path of the new note file
+ * @return {undefined} 
+ */
+function openNote(filepath) {
+    fs.access(filepath, fs.constants.R_OK | fs.constants.W_OK, (err) => {
+        if (err) {
+            try {
+                fs.writeFileSync(filepath, dateLine());
+            } catch (e) {
+                vscode.window.showErrorMessage("next-note: failed to create "+ filepath);
+                console.error(e);
+                return;
+            }
+        } 
+    });
+    vscode.workspace.openTextDocument(filepath).then(doc => {
+        vscode.window.showTextDocument(doc);
+        vscode.window.activeTextEditor.selection.active.line += 1;
+    });
+}
+
+/**
+ * return a best guess at the directory path to store notes in
+ * 
+ * @returns {String}
+ */
+function getBasedir() {
+    var basedir = process.env["NOTEDIR"];
+
+    if (!basedir) {
+        basedir = process.env["HOME"]+"/Notes";
+        console.log("next-note: no basedir. Using "+basedir);
+        console.log("next-note: set NOTEDIR to use a diferent basedir");
+    }
+    try {
+        fs.statSync(basedir);
+        } catch(e) {
+        try {
+            fs.mkdirSync(basedir);
+        } catch(e) {
+            throw(e);
+        }
+    }
+    return basedir;
+}
+
+/**
+ * get the markdown style heading for the current datetime stamp
+ * 
+ * @returns {String} (i.e. `## ...`)
+ */
 function dateLine() {
     var d = new Date();
     return "## "+ dateFormat(d,"ddd mmm dd HH:MM:ss Z yyyy") +"\n";
 }
 
+/**
+ * get the base file name of the current week
+ * 
+ * @returns {String} (i.e. "Tasks-20170219-20170225.md")
+ */
 function currentWeekFilename() {
     return "Tasks-"+currentWeek()+".md";
 }
 
+/**
+ * the string of the current week's date, sunday-saturday
+ * 
+ * @return {String}  (i.e. "20170219-20170225")
+ */
 function currentWeek() {
     var d = new Date();
     var beginDate = new Date();
@@ -82,10 +129,4 @@ function currentWeek() {
 
     return dateFormat(beginDate, "yyyymmdd")+"-"+dateFormat(d,"yyyymmdd");
     //return String(beginDate.getFullYear())+String(beginDate.getMonth())+String(beginDate.getDate()) +"-"+ String(d.getFullYear())+String(d.getMonth())+String(d.getDate());
-}
-
-// this method is called when your extension is deactivated
-function deactivate() {
-    console.log("next-note: deactivated")
-}
-exports.deactivate = deactivate;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 3a1698b..45890cc 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "next-note",
     "displayName": "next-note",
     "description": "Helpers for daily notes",
-    "version": "0.0.1",
+    "version": "0.0.2",
     "publisher": "vbatts",
     "repository": {
         "type": "git",