diff --git a/tmux.conf b/tmux.conf
index 722b0f5..59c16ff 100644
--- a/tmux.conf
+++ b/tmux.conf
@@ -119,27 +119,23 @@ bind C-a send-prefix                            # C-a C-a = literal C-a (shell h
 bind-key C-o command-prompt "new-session -s %1 -c ~"
 bind R source-file ~/.config/tmux/tmux.conf \; display-message "Config reloaded..."
 
-# Resizing key bindings
-bind-key -r C-l resize-pane -R 5
-bind-key -r C-k resize-pane -U 5
-bind-key -r C-j resize-pane -D 5
+# Resizing key bindings (same arrow layout as the moves below, with prefix)
+bind-key -r C-u resize-pane -U 5
 bind-key -r C-h resize-pane -L 5
+bind-key -r C-j resize-pane -D 5
+bind-key -r C-k resize-pane -R 5
 bind-key -r C-n next-window \; set status on
 bind-key -r C-p previous-window \; set status on
 
-# Moving accross pane (and vim)
+# Moving across panes (and vim), no prefix: ctrl + u/h/j/k laid out as arrows
+# (u up, h left, j down, k right). These keys sit at the same place on AZERTY
+# and QWERTY US, and need no option key. Each one still reaches vim when vim
+# runs in the pane. C-l is free, so it clears the shell screen again.
+# Shell cost: C-u (readline "clear the line") is taken.
+bind -n C-u if-shell "$is_vim" "send-keys C-u" "select-pane -U"
 bind -n C-h if-shell "$is_vim" "send-keys C-h" "select-pane -L"
 bind -n C-j if-shell "$is_vim" "send-keys C-j" "select-pane -D"
-bind -n C-k if-shell "$is_vim" "send-keys C-k" "select-pane -U"
-bind -n C-l if-shell "$is_vim" "send-keys C-l" "select-pane -R"
-#bind -n C-\ if-shell "$is_vim" "send-keys C-\\" "select-pane -l"
-
-# Same moves on option+arrow (iTerm2 sends them as M-arrow; "Left Option key"
-# must be Esc+ or the xterm preset). C-i/C-m were ruled out: they are Tab/Enter.
-bind -n M-Left  if-shell "$is_vim" "send-keys M-Left"  "select-pane -L"
-bind -n M-Down  if-shell "$is_vim" "send-keys M-Down"  "select-pane -D"
-bind -n M-Up    if-shell "$is_vim" "send-keys M-Up"    "select-pane -U"
-bind -n M-Right if-shell "$is_vim" "send-keys M-Right" "select-pane -R"
+bind -n C-k if-shell "$is_vim" "send-keys C-k" "select-pane -R"
 
 bind Escape copy-mode                              # bind vi-like 'normal' mode
 bind -Tcopy-mode-vi 'v' send -X begin-selection    # bind vi-like visual mode