Hi - I have a bunch of south-facing windows in my just-bought (10 months ago) home that are 35" x 84" single hung and single paned......one of them cracked this winter and I am now faced with having to replace them all.....quotes vary from $750 - 980 a window! Can't afford that kind of money at this time, as there are 11 windows to replace - 2 rooms - any suggestions on what I can do as summer is approaching (we are in Sugar Land Texas)