Has anyone here ever used these? I was looking at these and some of the other cleaning things there and I noticed that both are on clearance. One was $2.99 and the other was $0.48.

The cheaper one is called edge connector cleaner and protector. It seems the only difference bettween the two is the cheaper one includes isopropanol, polyphenyl ether and dye. The $3 one only had the isopropanol in it.

Also, I have a few other console and game cleaning questions. I was thinking of getting some of this contact cleaner. Do you think that stuff would be good for cleaning the console's contacts? My other question is: is it okay to get the 91% pure alcohol or should I go for the anhydrous stuff? I was wondering if it makes that big a difference. 91% is as pure as I've found locally. I searched online and the places that make it locally wouldn't likely sell it to me. I thinking about trying to find where the schools get their chemistry supplies.