diff --git a/src/inc/routes/admin.mjs b/src/inc/routes/admin.mjs
index 68f1178..cf8545b 100644
--- a/src/inc/routes/admin.mjs
+++ b/src/inc/routes/admin.mjs
@@ -38,8 +38,14 @@ export default (router, tpl) => {
       browser: req.headers["user-agent"],
       created_at: stamp,
       last_used: stamp,
-      last_action: "/login"
+      last_action: "/login",
+      kmsi: req.post.kmsi === 'on' ? 1 : 0
     });
+
+    await sql("user_sessions") // delete unused sessions
+      .where('last_action', '<=', (Date.now() - 6048e5))
+      .andWhere('kmsi', 0)
+      .del();
   
     return res.writeHead(301, {
       "Cache-Control": "no-cache, public",
diff --git a/views/login.html b/views/login.html
index 4dcaa88..5cda379 100644
--- a/views/login.html
+++ b/views/login.html
@@ -11,6 +11,7 @@
       <p><a href="/"><img src="/s/img/f0ck_small.png" /></a></p>
       <input type="text" name="username" placeholder="username" autocomplete="off" required />
       <input type="password" name="password" placeholder="password" autocomplete="off" required />
+      <p><input type="checkbox" id="kmsi" name="kmsi" /> <label for="kmsi">stay signed in</label></p>
       <button type="submit">Login</button>
     </form>
   </body>
diff --git a/views/settings.html b/views/settings.html
index a816547..498286d 100644
--- a/views/settings.html
+++ b/views/settings.html
@@ -26,6 +26,7 @@
 <table class="table">
   <thead>
     <tr>
+      <th></th>
       <th>id</th>
       <th>created_at</th>
       <th>last_used</th>
@@ -36,6 +37,7 @@
   <tbody>
     @each(sessions as sess)
     <tr@if(sess.id === session.sess_id) style="background-color: rgb(0, 89, 0)"@endif>
+      <td>{{ sess.kmsi ? '&#9875;' : '' }}</td>
       <td tooltip="{{ sess.browser }}" flow="right">{{ sess.id }}</td>
       <td>{{ new Date(sess.created_at * 1e3).toLocaleString("de-DE") }}</td>
       <td>{{ new Date(sess.last_used * 1e3).toLocaleString("de-DE") }}</td>