We recently discussed how much free PC tweaks can help gaming performance, and we found that if you really want to better your gaming experience, the best thing you can do is upgrade your graphics card. For many laptop users, this isn't really an option, but if you don't have the budget for a completely new machine, you can set up an external GPU for only one or two hundred dollars.
Will it perform as well as an internal graphics card of the same type? Heck no. Will it beat the pants off your laptop's integrated graphics? You better believe it. If you have a bit more money to spare, we highly recommend building a budget desktop instead — you'd be surprised what kind of machine you can get for five or six hundred bucks — but if you've only got one or two hundred bucks to spare, this can turn your laptop into a decent enough gaming machine when you're sitting at your desk. It isn't too complicated, but it's definitely a project you'll want to tackle over the course of a weekend. Hit the link for more information on the project.