We came across the Winbag at Stafda 2013 and 2014.  It is a one of those cool little inventions that once you have one, you wonder how you ever got by without it.  The Winbag can be used for a multitude of tasks.  It can shim and hold things in place until you fasten them in, it can spread things apart, it can lift up to 220lbs.  The days of having your wife hold the washer tited back while you adjust the legs are over.

Just squeeze the pump to inflate and push the button to deflate.  The bag is strong and will hold up in almost any environment.  It gaps 3/32″ to 2″ and is perfect for door and window installs.  Check it out over on Amazon