diff --git a/.gitignore b/.gitignore
index fbf0a3fb..dba938c7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,8 @@ profanity.mk
 profanity.project
 profanity.workspace
 compile_commands.json
+.tern-port
+.tern-project
 
 # autotools
 .libs/
@@ -56,3 +58,6 @@ gitpushall.sh
 # website files
 main_fragment.html
 toc_fragment.html
+
+# valgrind files
+valgrind.out
diff --git a/src/config/preferences.c b/src/config/preferences.c
index ccb1ae3a..7ae9695e 100644
--- a/src/config/preferences.c
+++ b/src/config/preferences.c
@@ -113,6 +113,7 @@ prefs_load(void)
         } else if (g_strcmp0(time, "off") == 0) {
             g_key_file_set_string(prefs, PREF_GROUP_UI, "time", "");
         }
+        prefs_free_string(time);
     }
     if (g_key_file_has_key(prefs, PREF_GROUP_UI, "time.statusbar", NULL)) {
         char *time = g_key_file_get_string(prefs, PREF_GROUP_UI, "time.statusbar", NULL);
@@ -123,6 +124,7 @@ prefs_load(void)
         } else if (g_strcmp0(time, "off") == 0) {
             g_key_file_set_string(prefs, PREF_GROUP_UI, "time.statusbar", "");
         }
+        prefs_free_string(time);
     }
 
     _save_prefs();
diff --git a/src/pgp/gpg.c b/src/pgp/gpg.c
index 724f1e9b..80aba996 100644
--- a/src/pgp/gpg.c
+++ b/src/pgp/gpg.c
@@ -333,12 +333,16 @@ p_gpg_sign(const char * const str, const char * const fp)
     error = gpgme_get_key(ctx, fp, &key, 1);
     if (error || key == NULL) {
         log_error("GPG: Failed to get key. %s %s", gpgme_strsource(error), gpgme_strerror(error));
-        gpgme_release (ctx);
+        gpgme_release(ctx);
+        if (key) {
+            gpgme_key_unref(key);
+        }
         return NULL;
     }
 
     gpgme_signers_clear(ctx);
     error = gpgme_signers_add(ctx, key);
+    gpgme_key_unref(key);
     if (error) {
         log_error("GPG: Failed to load signer. %s %s", gpgme_strsource(error), gpgme_strerror(error));
         gpgme_release(ctx);
diff --git a/src/ui/window.c b/src/ui/window.c
index 95e89849..d537c97a 100644
--- a/src/ui/window.c
+++ b/src/ui/window.c
@@ -907,12 +907,17 @@ void
 win_print(ProfWin *window, const char show_char, int pad_indent, GDateTime *timestamp,
     int flags, theme_item_t theme_item, const char * const from, const char * const message)
 {
-    if (timestamp == NULL) timestamp = g_date_time_new_now_local();
+    if (timestamp == NULL) {
+        timestamp = g_date_time_new_now_local();
+    } else {
+        g_date_time_ref(timestamp);
+    }
 
     buffer_push(window->layout->buffer, show_char, pad_indent, timestamp, flags, theme_item, from, message, NULL);
     _win_print(window, show_char, pad_indent, timestamp, flags, theme_item, from, message, NULL);
     // TODO: cross-reference.. this should be replaced by a real event-based system
     ui_input_nonblocking(TRUE);
+    g_date_time_unref(timestamp);
 }
 
 void
@@ -975,7 +980,7 @@ _win_print(ProfWin *window, const char show_char, int pad_indent, GDateTime *tim
     gchar *date_fmt = NULL;
     char *time_pref = prefs_get_string(PREF_TIME);
     date_fmt = g_date_time_format(time, time_pref);
-    free(time_pref);
+    prefs_free_string(time_pref);
     assert(date_fmt != NULL);
 
     if(strlen(date_fmt) != 0){
@@ -992,7 +997,6 @@ _win_print(ProfWin *window, const char show_char, int pad_indent, GDateTime *tim
                 wattroff(window->layout->win, theme_attrs(THEME_TIME));
             }
         }
-        g_free(date_fmt);
     }
 
     if (strlen(from) > 0) {
@@ -1049,6 +1053,8 @@ _win_print(ProfWin *window, const char show_char, int pad_indent, GDateTime *tim
             wattroff(window->layout->win, theme_attrs(theme_item));
         }
     }
+
+    g_free(date_fmt);
 }
 
 static void
diff --git a/src/xmpp/iq.c b/src/xmpp/iq.c
index ff684b60..db817e13 100644
--- a/src/xmpp/iq.c
+++ b/src/xmpp/iq.c
@@ -746,6 +746,7 @@ _enable_carbons_handler(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza,
         char *error_message = stanza_get_error_message(stanza);
         cons_show_error("Server error enabling message carbons: %s", error_message);
         log_debug("Error enabling carbons: %s", error_message);
+        free(error_message);
     } else {
         log_debug("Message carbons enabled.");
     }
@@ -761,6 +762,7 @@ _disable_carbons_handler(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza,
         char *error_message = stanza_get_error_message(stanza);
         cons_show_error("Server error disabling message carbons: %s", error_message);
         log_debug("Error disabling carbons: %s", error_message);
+        free(error_message);
     } else {
         log_debug("Message carbons disabled.");
     }
diff --git a/src/xmpp/stanza.c b/src/xmpp/stanza.c
index bb32932a..acee97fb 100644
--- a/src/xmpp/stanza.c
+++ b/src/xmpp/stanza.c
@@ -213,6 +213,7 @@ stanza_enable_carbons(xmpp_ctx_t *ctx){
     xmpp_stanza_set_ns(carbons_enable, STANZA_NS_CARBONS);
 
     xmpp_stanza_add_child(iq, carbons_enable);
+    xmpp_stanza_release(carbons_enable);
 
     return iq;
 }
@@ -232,6 +233,7 @@ stanza_disable_carbons(xmpp_ctx_t *ctx){
     xmpp_stanza_set_ns(carbons_disable, STANZA_NS_CARBONS);
 
     xmpp_stanza_add_child(iq, carbons_disable);
+    xmpp_stanza_release(carbons_disable);
 
     return iq;
 }