If you are going to use Backbone for the first time in a big project, beware that you don't end up with low-level code that is duplicated in different flavours

If you are going to use Backbone for the first time in a big project, beware that you don't end up with low-level code that is duplicated in different flavours all over the place. When you have implemented features enough to notice that it takes too many steps to make new views that resemble old ones, ease off from feature building, and make proper custom abstractions suitable for that particular project. Also check out Backbone extension: Marionette for modularizing and backbone-documentmodel for non-linear forms.