Upgrading my laptop's hardware
 

Is this possible? Like could I replace the video card with a better one and not have to do anything I wouldn't do on a PC afterwards?

Uhhh hahahahahaha.

No, not unless you're good with a soldering iron, generally. You might have a high-end, yet pricey computer that has an MXM module for expansion, but I doubt it. Not for the $1000 you specified in another thread. Nope. The cheapest thing to do is get more RAM, a faster hard-drive, overclock, or some sort of solid state drive. And keep all of your software up to date, (drivers and such), and keep them free of bloat.