window lock

heca

how can i lock my window when i have window ac in it. Note that window is half open

banjo

They make a little lock that clamps on the window frame so the window cannot be lifted any higher. I can't think of the name but I found a pack of 2 at Lowe's with their security products for ~$5. I'll post a pic if I can find one.

Looks like this:
http://www.amazon.com/High-Security-.../dp/B00065XR2M

Although this looks like it may be easier to unlock if you ever need to remove the A/C, not sure it's worth that much extra though.
http://www.target.com/p/Prograde-Win...k/-/A-10998039