diff --git a/lib/penchant.rb b/lib/penchant.rb
index 0dfcd5d..11dd46c 100644
--- a/lib/penchant.rb
+++ b/lib/penchant.rb
@@ -1,3 +1,4 @@
 module Penchant
   autoload :Gemfile, 'penchant/gemfile'
+  autoload :DotPenchant, 'penchant/dot_penchant'
 end
diff --git a/lib/penchant/dot_penchant.rb b/lib/penchant/dot_penchant.rb
new file mode 100644
index 0000000..7bfbfbe
--- /dev/null
+++ b/lib/penchant/dot_penchant.rb
@@ -0,0 +1,16 @@
+module Penchant
+  class DotPenchant
+    class << self
+      def run(env = nil)
+        dot_penchant = new
+        dot_penchant.run(env)
+        dot_penchant
+      end
+    end
+
+    def run(env = nil)
+      instance_eval(File.read('.penchant'))
+    end
+  end
+end
+
diff --git a/lib/penchant/gemfile.rb b/lib/penchant/gemfile.rb
index d5e6067..1ddd347 100644
--- a/lib/penchant/gemfile.rb
+++ b/lib/penchant/gemfile.rb
@@ -27,6 +27,10 @@ module Penchant
       File.file?('Gemfile')
     end
 
+    def has_dot_penchant?
+      File.file?('.penchant')
+    end
+
     def gemfile_erb_path
       file_in_path('Gemfile.erb')
     end
@@ -48,6 +52,8 @@ module Penchant
 
         fh.print ERB.new(template).result(binding)
       end
+
+      run_dot_penchant!(gemfile_env) if has_dot_penchant?
     end
 
     private
@@ -58,6 +64,10 @@ module Penchant
     def env(check, &block)
       instance_eval(&block) if check.to_s == @env.to_s
     end
+
+    def run_dot_penchant!(env)
+      DotPenchant.run(env)
+    end
   end
 end
 
diff --git a/spec/lib/penchant/dot_penchant_spec.rb b/spec/lib/penchant/dot_penchant_spec.rb
new file mode 100644
index 0000000..73bf0cc
--- /dev/null
+++ b/spec/lib/penchant/dot_penchant_spec.rb
@@ -0,0 +1,20 @@
+require 'spec_helper'
+
+describe Penchant::DotPenchant do
+  include FakeFS::SpecHelpers
+
+  describe '.run' do
+    before do
+      File.open('.penchant', 'wb') { |fh|
+        fh.puts "@did_run = env"
+      }
+    end
+
+    it 'should run the file in the environment' do
+      dot_file = Penchant::DotPenchant.run(:this)
+
+      dot_file.instance_variable_get(:@did_run).should == :this
+    end
+  end
+end
+
diff --git a/spec/lib/penchant/gemfile_spec.rb b/spec/lib/penchant/gemfile_spec.rb
index cc22c51..356581e 100644
--- a/spec/lib/penchant/gemfile_spec.rb
+++ b/spec/lib/penchant/gemfile_spec.rb
@@ -103,6 +103,22 @@ ERB
         File.read('Gemfile').should_not include('not')
         File.read('Gemfile').should include('all')
       end
+
+      it { should_not have_dot_penchant }
+
+      context 'with .penchant' do
+        before do
+          File.open('.penchant', 'wb')
+        end
+
+        it { should have_dot_penchant }
+
+        it 'should process the file' do
+          subject.expects(:run_dot_penchant!).with(:not)
+
+          subject.switch_to!(:not)
+        end
+      end
     end
   end
 end