The pitcher plant puts off a God-awful oder that you do not want in your house. That is unless you like the smell and taste of rotting yak flesh. That's what attracts the insects, so it is only for insects that eat rotting dead flesh.

I think that with a little effort it would be quite possible to put some venus fly traps into your grow. You would just have build some shade for them, and maybe put some water all around them, or figure out some other way to keep them humid. Automatic fogging system that comes on several times per day, or all day. Nozzles right next to the fly traps. The only draw back is, even though it could keep many pests in check, I would bet my 5th nipple that it would not stand a chance against the two spotted spider mite.