My 2010 MacBook Pro was pretty "snappy" back in the day (if I could borrow a phrase ). However, it's been running slow lately in terms of opening up multiple applications and switching between them and when I have multiple windows/tabs running in Safari (I get that rainbow coloured beachball spinning). Right now I'm running OSX 10.8.5 Mountain Lion with 4 GB 1067 MHz DDR3, 2.4 GHz Intel Core i5. My Hard Drive has 306.19GB out of 319.21GB used. What steps can I take to get my Mac running without a hitch? More ram? SSD? Fresh install? Bigger hard drive? Any help would be greatly appreciate! Thank you.