routes.rb

map.resource :session, :collection => { :forgot_password => :post, :sign_out => :get } do |session|
  session.connect 'reset_password/:token', :controller => 'sessions', :action => 'reset_password'
  session.connect 'activate_account/:token', :controller => 'sessions', :action => 'activate_account'
end

map.resource :cart, :collection => { :expired => :get } do |cart|
  cart.resource :checkout, :collection => [ :pickup_order, :update_shipping_address, :update_shipping_method, :update_payment ] do |checkout|
    checkout.resources :complete, :only => :show
  end
end