diff --git a/lib/mbsy.rb b/lib/mbsy.rb
index 4828b65..6cea884 100644
--- a/lib/mbsy.rb
+++ b/lib/mbsy.rb
@@ -1,16 +1,10 @@
 require 'cgi'
 require 'httparty'
 require 'json'
-require 'mbsy/resources/base'
-require 'mbsy/resources/ambassador'
-require 'mbsy/resources/commission'
-require 'mbsy/resources/balance'
-require 'mbsy/resources/company'
-require 'mbsy/resources/event'
-require 'mbsy/resources/group'
-require 'mbsy/resources/shortcode'
-require 'mbsy/resources/social'
-require 'mbsy/util/single_sign_on'
+
+require 'mbsy/resources'
+require 'mbsy/utils'
+require 'mbsy/deprecations'
 
 module Mbsy
   class << self
diff --git a/lib/mbsy/deprecations.rb b/lib/mbsy/deprecations.rb
new file mode 100644
index 0000000..2eae797
--- /dev/null
+++ b/lib/mbsy/deprecations.rb
@@ -0,0 +1,10 @@
+require_relative 'deprecations/resources'
+require_relative 'deprecations/util'
+
+module Mbsy
+  def self.deprecate message
+    dep_method = caller_locations(1,1)[0].label
+    warn "[DEPRECATED] `#{dep_method}` is deprecated. Use #{message}."
+    yield
+  end
+end
diff --git a/lib/mbsy/deprecations/resources.rb b/lib/mbsy/deprecations/resources.rb
new file mode 100644
index 0000000..8cbe4e9
--- /dev/null
+++ b/lib/mbsy/deprecations/resources.rb
@@ -0,0 +1,2 @@
+require_relative 'resources/company'
+require_relative 'resources/balance'
diff --git a/lib/mbsy/deprecations/resources/balance.rb b/lib/mbsy/deprecations/resources/balance.rb
new file mode 100644
index 0000000..f37b6e0
--- /dev/null
+++ b/lib/mbsy/deprecations/resources/balance.rb
@@ -0,0 +1,12 @@
+module Mbsy
+  class Balance < Base
+    def self.update(mode, params={})
+      Mbsy.deprecate '`add` or `deduct`' do
+        case mode
+        when :add    then add(params)
+        when :deduct then deduct(params)
+        end
+      end
+    end
+  end
+end
diff --git a/lib/mbsy/deprecations/resources/company.rb b/lib/mbsy/deprecations/resources/company.rb
new file mode 100644
index 0000000..158a1da
--- /dev/null
+++ b/lib/mbsy/deprecations/resources/company.rb
@@ -0,0 +1,9 @@
+module Mbsy
+  class Company < Base
+    def self.get_details
+      Mbsy.deprecate 'details' do
+        details
+      end
+    end
+  end
+end
diff --git a/lib/mbsy/deprecations/util.rb b/lib/mbsy/deprecations/util.rb
new file mode 100644
index 0000000..e69de29
diff --git a/lib/mbsy/resources.rb b/lib/mbsy/resources.rb
new file mode 100644
index 0000000..5e5638e
--- /dev/null
+++ b/lib/mbsy/resources.rb
@@ -0,0 +1,9 @@
+require_relative 'resources/base'
+require_relative 'resources/ambassador'
+require_relative 'resources/commission'
+require_relative 'resources/balance'
+require_relative 'resources/company'
+require_relative 'resources/event'
+require_relative 'resources/group'
+require_relative 'resources/shortcode'
+require_relative 'resources/social'
diff --git a/lib/mbsy/resources/balance.rb b/lib/mbsy/resources/balance.rb
index cde0bb5..1a2641e 100644
--- a/lib/mbsy/resources/balance.rb
+++ b/lib/mbsy/resources/balance.rb
@@ -1,14 +1,5 @@
 module Mbsy
   class Balance < Base
-    def self.update(mode, params={})
-      case mode
-      when :add
-        add(params)
-      when :deduct
-        deduct(params)
-      end
-    end
-
     def self.add(params = {})
       raise ArgumentError, "You must include :email" unless params[:email]
       raise ArgumentError, "You must include :amount" unless params[:amount]
diff --git a/lib/mbsy/resources/company.rb b/lib/mbsy/resources/company.rb
index 81fc943..23846d2 100644
--- a/lib/mbsy/resources/company.rb
+++ b/lib/mbsy/resources/company.rb
@@ -4,12 +4,6 @@ def self.details
       call('get')
     end
 
-    def self.get_details
-      warn '[DEPRECATED] `get_details` is deprecated.' +
-           'Please use `details` instead.'
-      details
-    end
-
     def self.stats
       call('stats')
     end
diff --git a/lib/mbsy/utils.rb b/lib/mbsy/utils.rb
new file mode 100644
index 0000000..092d087
--- /dev/null
+++ b/lib/mbsy/utils.rb
@@ -0,0 +1 @@
+require_relative 'util/single_sign_on'