Donation Value Guide

This one is from my sister-in-law:

I have always heard that people tend to undervalue their donation of goods to charities. I went online and got value guides from Goodwill and Salvation Army. I used these guides to inventory what I had in the boxes. I have 8 boxes (small-medium sized) to donate. Previously, I would have just scribbled an amount on the receipt at the donation center. Based on previous scribblings, I probably would have put down $150-200. Using the conservative values from their guides I totaled it at $329.00.
If you want to do the same, you can get the guides at: