The Handiest GitHub Trick I know: ?w=no

Add it to the URL when you're looking at the diff of a pull request, and the diff will ignore whitespace changes.

It can make big ugly diff look really obvious and neat.

Use with care.

Access your AngularJS services with a handy JS console script

angular.element(document)
       .injector()
       .invoke(function($window, Todos, Account) {

  $window.MyNS = {
    Todos: Todos,
    Account: Account
  }
});


Now you have access to MyNS.Todos and MyNS.Account in the console!

Magento 403 Forbidden at /.html

The Magento installation I've been working on has a somewhat unique property - many of the products don't have names. Magento normally uses the names to generate rewrite URLs, so that causes a weird quirk: The first product with no name gets a url like store.example.com/.html

Apache2 has an explicit DENY for files beginning with '.ht' that can be overridden in your .htaccess:

###########################################
## Fixing /.html
<Files ~ "^\.html">
    Order allow,deny
    Allow from all
    Satisfy any
</Files>

HTH someone else!