Here’s a basic but essential trick that Windows users take for granted—making the mouse cursor bigger, which can help on larger screens of if you simply prefer it that way.
Migrating Windows users using OS X might recall being able to change the type and size of the mouse pointer within Microsoft’s products. Apple doesn’t allow users to change the design of the mouse pointers, but you can make them bigger. This is intended to help those with limited eyesight, but it can be very useful for the rest of us too!
You’ll find the setting within the Universal Access pane of System Preferences (Apple menu->System Preferences). Click the Mouse & Trackpad tab and then click and drag the Cursor Size slider. The changes will take effect immediately, so choose a size you’re happy with.
Alas, it’s not perfect—the existing small mouse cursors are simply magnified to make them larger, leaving them looking a little blurry at larger sizes. To revert back to default sizes, just click and drag the Cursor Size slider all the way to the left.