diff --git a/src/vattachmentlist.cpp b/src/vattachmentlist.cpp
index 2cd70ff0..56fe5e2f 100644
--- a/src/vattachmentlist.cpp
+++ b/src/vattachmentlist.cpp
@@ -378,13 +378,11 @@ void VAttachmentList::sortItems()
     QTreeWidget *tree = dialog.getTreeWidget();
     tree->clear();
     tree->setColumnCount(1);
-    QStringList headers;
-    headers << tr("Name");
+    QStringList headers(tr("Name"));
     tree->setHeaderLabels(headers);
 
     for (int i = 0; i < attas.size(); ++i) {
         QTreeWidgetItem *item = new QTreeWidgetItem(tree, QStringList(attas[i].m_name));
-
         item->setData(0, Qt::UserRole, i);
     }
 
diff --git a/src/vcart.cpp b/src/vcart.cpp
index 5f2b9721..986af91c 100644
--- a/src/vcart.cpp
+++ b/src/vcart.cpp
@@ -7,6 +7,8 @@
 #include "vmainwindow.h"
 #include "vnote.h"
 #include "vnotefile.h"
+#include "vlistwidget.h"
+#include "dialog/vsortdialog.h"
 
 extern VMainWindow *g_mainWin;
 
@@ -54,6 +56,7 @@ void VCart::setupUI()
     m_itemList->setAttribute(Qt::WA_MacShowFocusRect, false);
     m_itemList->setContextMenuPolicy(Qt::CustomContextMenu);
     m_itemList->setSelectionMode(QAbstractItemView::ExtendedSelection);
+    m_itemList->setDragDropMode(QAbstractItemView::InternalMove);
     connect(m_itemList, &QListWidget::customContextMenuRequested,
             this, &VCart::handleContextMenuRequested);
     connect(m_itemList, &QListWidget::itemActivated,
@@ -87,6 +90,13 @@ void VCart::initActions()
     m_deleteAct->setToolTip(tr("Delete selected items from Cart"));
     connect(m_deleteAct, &QAction::triggered,
             this, &VCart::deleteSelectedItems);
+
+    m_sortAct = new QAction(VIconUtils::menuIcon(":/resources/icons/sort.svg"),
+                            tr("&Sort"),
+                            this);
+    m_sortAct->setToolTip(tr("Sort items in Cart"));
+    connect(m_sortAct, &QAction::triggered,
+            this, &VCart::sortItems);
 }
 
 void VCart::handleContextMenuRequested(QPoint p_pos)
@@ -105,9 +115,17 @@ void VCart::handleContextMenuRequested(QPoint p_pos)
         menu.addAction(m_deleteAct);
     }
 
-    if (!menu.actions().isEmpty()) {
-        menu.exec(m_itemList->mapToGlobal(p_pos));
+    if (m_itemList->count() == 0) {
+        return;
     }
+
+    if (!menu.actions().isEmpty()) {
+        menu.addSeparator();
+    }
+
+    menu.addAction(m_sortAct);
+
+    menu.exec(m_itemList->mapToGlobal(p_pos));
 }
 
 void VCart::addFile(const QString &p_filePath)
@@ -207,3 +225,41 @@ QVector<QString> VCart::getFiles() const
 
     return files;
 }
+
+void VCart::sortItems()
+{
+    if (m_itemList->count() < 2) {
+        return;
+    }
+
+    VSortDialog dialog(tr("Sort Cart"),
+                       tr("Sort items in Cart."),
+                       this);
+    QTreeWidget *tree = dialog.getTreeWidget();
+    tree->clear();
+    tree->setColumnCount(1);
+    QStringList headers(tr("Name"));
+    tree->setHeaderLabels(headers);
+
+    int cnt = m_itemList->count();
+    for (int i = 0; i < cnt; ++i) {
+        QListWidgetItem *it = m_itemList->item(i);
+        QTreeWidgetItem *item = new QTreeWidgetItem(tree,
+                                                    QStringList(it->text()));
+        item->setToolTip(0, getFilePath(it));
+        item->setData(0, Qt::UserRole, i);
+    }
+
+    dialog.treeUpdated();
+
+    if (dialog.exec()) {
+        QVector<QVariant> data = dialog.getSortedData();
+        Q_ASSERT(data.size() == cnt);
+        QVector<int> sortedIdx(data.size(), -1);
+        for (int i = 0; i < data.size(); ++i) {
+            sortedIdx[i] = data[i].toInt();
+        }
+
+        VListWidget::sortListWidget(m_itemList, sortedIdx);
+    }
+}
diff --git a/src/vcart.h b/src/vcart.h
index f2ef8313..b67eed9a 100644
--- a/src/vcart.h
+++ b/src/vcart.h
@@ -37,6 +37,8 @@ private slots:
 
     void locateCurrentItem();
 
+    void sortItems();
+
 private:
     void setupUI();
 
@@ -56,6 +58,7 @@ private:
     QAction *m_openAct;
     QAction *m_locateAct;
     QAction *m_deleteAct;
+    QAction *m_sortAct;
 };
 
 #endif // VCART_H
diff --git a/src/vlistwidget.cpp b/src/vlistwidget.cpp
index bf250fe0..4def3a4b 100644
--- a/src/vlistwidget.cpp
+++ b/src/vlistwidget.cpp
@@ -142,3 +142,19 @@ void VListWidget::selectNextItem(bool p_forward)
     Q_UNUSED(p_forward);
     Q_ASSERT(false);
 }
+
+void VListWidget::sortListWidget(QListWidget *p_list, const QVector<int> &p_sortedIdx)
+{
+    int cnt = p_list->count();
+    Q_ASSERT(cnt == p_sortedIdx.size());
+
+    QVector<QListWidgetItem *> sortedItems(cnt);
+    for (int i = 0; i < cnt; ++i) {
+        sortedItems[i] = p_list->item(p_sortedIdx[i]);
+    }
+
+    for (int i = 0; i < cnt; ++i) {
+        QListWidgetItem *it = p_list->takeItem(p_list->row(sortedItems[i]));
+        p_list->insertItem(i, it);
+    }
+}
diff --git a/src/vlistwidget.h b/src/vlistwidget.h
index 2cc87b04..910e2636 100644
--- a/src/vlistwidget.h
+++ b/src/vlistwidget.h
@@ -2,6 +2,7 @@
 #define VLISTWIDGET_H
 
 #include <QListWidget>
+#include <QVector>
 
 #include "vsimplesearchinput.h"
 
@@ -31,6 +32,9 @@ public:
 
     virtual void selectNextItem(bool p_forward) Q_DECL_OVERRIDE;
 
+    // Sort @p_list according to @p_sortedIdx.
+    static void sortListWidget(QListWidget *p_list, const QVector<int> &p_sortedIdx);
+
 private slots:
     void handleSearchModeTriggered(bool p_inSearchMode);
 
diff --git a/src/vsearcher.cpp b/src/vsearcher.cpp
index a87ced44..69969cd5 100644
--- a/src/vsearcher.cpp
+++ b/src/vsearcher.cpp
@@ -99,6 +99,7 @@ void VSearcher::setupUI()
     m_keywordCB->setEditable(true);
     m_keywordCB->setLineEdit(new VLineEdit(this));
     m_keywordCB->setToolTip(tr("Keywords to search for"));
+    m_keywordCB->lineEdit()->setPlaceholderText(tr("Supports space, &&, and ||"));
     connect(m_keywordCB, &QComboBox::currentTextChanged,
             this, &VSearcher::handleInputChanged);
     connect(m_keywordCB->lineEdit(), &QLineEdit::returnPressed,