7827cb22_nt_Tips__www_JoleneMorris_com___with_ALT
[Function Key] F4 [Pressed Alone] Repeat the last action -or- Open the Look In list (if in help) [with SHIFT] Repeat the last find action [with CTRL] Close the active Window [with ALT] 
Close the active application
25 PowerPoint Tips (www.JoleneMorris.com)
with ALT