Got a link to where you ordered those from Nicole? I am trying to get my wifey to buy off on the idea. We have SOOOOOO many windows in the house its goofy.
I went with Blinds.com. Super prices, fast shipping, and unfortunately I can attest that their customer service is great... although I wish I didn't have the opportunity to find out. They didn't question the damage (I sent pics), just sent me an email saying sorry, and the new blinds would leave the manufacturer on Tuesday. You can get actual prices online on their web site and price out everything in different options, which is great for shopping different manufacturers/styles/etc.
Downside is, you have to be REALLY sure what you want and if you measure your windows wrong or pick the wrong color, you are stuck. You can order fabric samples from them, but I just went to Home Depot to look at the manufacturer sample books there. Funny, I was sitting there with the samples and my book of color samples from my house for an hour, and no one offered to help me or price out custom blinds for me. :rolleye1: 3 Day Blinds couldn't build what I wanted and was twice as much money, and tried to hard sell me on their half-custom solution.
Honestly, though, if you windows are old you are better off replacing your windows first. The difference between my 43 year old aluminum single pane garbage and my new vinyl dual-pane low-E glass on my big 10' west-facing window is about 10 degrees, and I haven't seen them perform on a really hot day, yet. The blinds should help another 5 degrees or so, but can only do so much, and if the window were still letting all the heat in...
3/8" double cell in an opaque blind is an R-rating of ~3.8. You can get to ~R5 or so with a double-cell room darkening blind (mylar coated on the inside of the cells), and even higher with a triple cell or a larger cell blind.