FREE:
1) Express Cache: Speeds up your computer
Download here
2) Create a RamDisk: If you have 8 or 16GB of ram, you can create a Ramdisk and tweak a bit to make your computer very fast.
I am using Imdisk. It has dynamic Ramdisk, meaning if you create a 4GB Ramdisk, and the total amount of ram you are using now is 2.8GB, your computer will use 2.8GB of ram and not wasting the resource of 4GB.
Ramdisk is good for placing the Temp files and Google Chrome Cache to increase the speed of your PC.
3) Use your CPU cores: Watch the video here.
PAID:
1) eBoostr - If you have 8 or 16GB of ram, you can use eBoostr as a Cache, so that your computer won't have to go back to the hard disk to get information. This speeds up your laptop, PC reasonably fast.
I have 16GB of ram and is using the Pro version, I allocate 4GB to eBoostr. And it's so fast!
http://www.eboostr.com/