Recently, I bought a $140 refurbished 2007 Macbook. It worked reasonably well, goes up to El Capitan, and does what I need it to do. The worst complaint I have is that it can't run FSO, and it is really my only computer right now.
About a month ago it started freezing, and I was pretty unhappy. It seemed to happen whenever I moved the computer. When using a laptop, that is extremely annoying. But being a teacher, and having basically no free time, I had to just deal with it until today. Today I bought some computer screwdrivers and one of those pressurized air cans that is supposed to blow dust out of your computer, I used them and tada! It works again! I am so happy.
I guess they never cleaned the dust when they refurbished it.
TL:DR, In any case, just wanted to post a quick PSA, telling/reminding everyone to get the dust out of their computer from time to time, (even though most of you probably already do). Your computer will thank you.
