[LoonyPandora]

Or even simpler, use the customizer [0] to download the bits you want. A few checkboxes and you're done.

[0] http://getbootstrap.com/customize/

[scarecrowbob]

True... but often I get a feature request and so rather than adding another file, it's often easier for me to just uncomment something that was previously unneeded.

[SkyMarshal]

That works too, though you don't get the reusable build system, just the compiled output of it.