What to use to adjust the tilt of a window a/c?
I just had a new window air conditioner installed and realized after a couple of hours that it's not tilted correctly towards the outside - because it's spitting water into the room! I've got the installer coming back on Friday to put in a second unit, at which point I'll have him adjust it and be sure the second one is tilted properly. Before he comes I want to get whatever I need to shim the unit(s) so they tilt properly. What's the best thing to put between the windowsill and the unit to get the right degree of tilt? Thin pieces of wood? I'd like this to look as un-messy as possible, since my lovely window trim was just painted, so I wondered if there was some sort of obvious hardware-store item that would do the trick and would look better and be more stable than random scraps of splintery wood.