I have an original MacBook Air. 1.6 GHz Core 2 Duo, 2 GB 667 MHz DDR2, 10.7.5 Hard Drive capacity is 119 GB and it has 13.62 GB available (is that too little? Would I notice any speed boosts by throwing some stuff away?) It can't upgrade to Maverick or Mountain Lion. It can't run the newest versions of iWork, Xcode, or Safari (although it is capable of running iWork on iCloud, which seems to have most of the features available in the desktop version.) If I had any budget flexibility, I'd replace it, but I'm a student $20K in debt with a storm of payment due dates in the coming months, so I'm stuck with this for at least the next four months - possibly even longer. Everything about this computer is sluggish. Launch Safari - it takes a few seconds to open a blank window (I already turned off a home page and that favorites grid view thing to speed it up.) Click on Spotlight - it takes a few seconds. Type in a text field - get a beach ball for a few seconds before the text shows up. Wake it from sleep, it takes ~30 seconds before it starts registering mouse clicks and button presses (the clock will actually be stuck during that time - my first thought is always "It crashed while sleeping?" but then it starts moving a minute later.) What is it that makes it this way? I can't imagine it behaved this poorly when it was first made 6 years ago. I've thought about downgrading to Snow Leopard, but I'm a developer using NSRegularExpression, which requires a minimum of Lion. So... any ideas for what I can do to get this computer to be a bit more livable?