DH's back sliding window on his Toyota pick-up truck was smashed. We called a few a glass shops in town and they wanted between $500 and $675, to replace the entire rear window despite the fact only the slider was broken. According to them, no one makes or sells just the slider. So we turned to the internet. In about 5 minutes we had found a seller that had the correct piece of glass and a 6-minute installation video for around $130. We bought it and it took about 15 minutes to install.
Although this isn't a huge win, it has really made my husband realize the value of the MMM philosophy.