diff --git a/libgnucash/engine/gnc-lot.c b/libgnucash/engine/gnc-lot.c
index d1b411782a..a8eaf79025 100644
--- a/libgnucash/engine/gnc-lot.c
+++ b/libgnucash/engine/gnc-lot.c
@@ -86,6 +86,9 @@ typedef struct GNCLotPrivate
     /* List of splits that belong to this lot. */
     SplitList *splits;
 
+    char *title;
+    char *notes;
+
     GncInvoice *cached_invoice;
     /* Handy cached value to indicate if lot is closed. */
     /* If value is negative, then the cache is invalid. */
@@ -103,6 +106,9 @@ typedef struct GNCLotPrivate
 
 /* ============================================================= */
 
+static char*
+is_unset = "unset";
+
 /* GObject Initialization */
 G_DEFINE_TYPE_WITH_PRIVATE(GNCLot, gnc_lot, QOF_TYPE_INSTANCE)
 
@@ -116,6 +122,8 @@ gnc_lot_init(GNCLot* lot)
     priv->splits = NULL;
     priv->cached_invoice = NULL;
     priv->is_closed = LOT_CLOSED_UNKNOWN;
+    priv->title = is_unset;
+    priv->notes = is_unset;
     priv->marker = 0;
 }
 
@@ -295,6 +303,14 @@ gnc_lot_free(GNCLot* lot)
     if (priv->account && !qof_instance_get_destroying(priv->account))
         xaccAccountRemoveLot (priv->account, lot);
 
+    if (priv->notes != is_unset)
+        g_free (priv->notes);
+
+    if (priv->title != is_unset)
+        g_free (priv->title);
+
+    priv->notes = NULL;
+    priv->title = NULL;
     priv->account = NULL;
     priv->is_closed = TRUE;
     /* qof_instance_release (&lot->inst); */
@@ -439,30 +455,46 @@ gint gnc_lot_count_splits (const GNCLot *lot)
 const char *
 gnc_lot_get_title (const GNCLot *lot)
 {
-    GValue v = G_VALUE_INIT;
+    GNCLotPrivate* priv;
     if (!lot) return NULL;
-    qof_instance_get_kvp (QOF_INSTANCE (lot), &v, 1, "title");
-    if (G_VALUE_HOLDS_STRING (&v))
-        return g_value_get_string (&v);
-    return NULL;
+    priv = GET_PRIVATE (lot);
+    if (priv->title == is_unset)
+    {
+        GNCLotPrivate* priv = GET_PRIVATE (lot);
+        GValue v = G_VALUE_INIT;
+        qof_instance_get_kvp (QOF_INSTANCE (lot), &v, 1, "title");
+        priv->title = G_VALUE_HOLDS_STRING (&v) ? g_value_dup_string (&v) : NULL;
+        g_value_unset (&v);
+    }
+    return priv->title;
 }
 
 const char *
 gnc_lot_get_notes (const GNCLot *lot)
 {
-    GValue v = G_VALUE_INIT;
+    GNCLotPrivate* priv;
     if (!lot) return NULL;
-    qof_instance_get_kvp (QOF_INSTANCE (lot), &v, 1, "notes");
-    if (G_VALUE_HOLDS_STRING (&v))
-        return g_value_get_string (&v);
-    return NULL;
+    priv = GET_PRIVATE (lot);
+    if (priv->notes == is_unset)
+    {
+        GValue v = G_VALUE_INIT;
+        qof_instance_get_kvp (QOF_INSTANCE (lot), &v, 1, "notes");
+        priv->notes = G_VALUE_HOLDS_STRING (&v) ? g_value_dup_string (&v) : NULL;
+        g_value_unset (&v);
+    }
+    return priv->notes;
 }
 
 void
 gnc_lot_set_title (GNCLot *lot, const char *str)
 {
     GValue v = G_VALUE_INIT;
+    GNCLotPrivate* priv;
     if (!lot) return;
+    priv = GET_PRIVATE (lot);
+    if (priv->title != is_unset)
+        g_free (priv->title);
+
     qof_begin_edit(QOF_INSTANCE(lot));
     g_value_init (&v, G_TYPE_STRING);
     g_value_set_string (&v, str);
@@ -476,7 +508,11 @@ void
 gnc_lot_set_notes (GNCLot *lot, const char *str)
 {
     GValue v = G_VALUE_INIT;
+    GNCLotPrivate* priv;
     if (!lot) return;
+    priv = GET_PRIVATE (lot);
+    if (priv->notes != is_unset)
+        g_free (priv->notes);
     qof_begin_edit(QOF_INSTANCE(lot));
     g_value_init (&v, G_TYPE_STRING);
     g_value_set_string (&v, str);