@grahamgilchrist I have also been doing that on most web projects.

However it has bitten me a few times where I need styles outside of the scoped selectors.

I would propose that we use Sass extensions for all of these components,

Example:
```
%heading-1
    font:
       size: 9000px
    color: #321123

.content
    h1
        @extend %heading-1

.sidebar
    .some-thing
        @extend %heading-1
```