Just make sure every time you walk around and come back to the computer that you discharge any static buildup on the case or some other metal object that is grounded. Taking your socks off on the carpet is also a good idea.
I do lots of work on my computer on rugs, and always discharge before working. It hasn't failed me yet. If you feel so compelled to get an anti-static strap, you can get them cheap online on Amazon/Newegg.
Yeah, if I would have thought about it early enough, I would have bought one. But since I'm already receiving my items (yesterday, today, and 2 tomorrow) don't really want to wait for it to be shipped to me.
I'm always barefoot in my house...I guess that's why I get shocked 6-10 times a shift at work and 0 times at home?
You don't have to continually touch the case, since you only generate static when you rub against the carpet with, say, your feet/socks. I just do it every time I get up to get something and then come back.