diff --git a/app/controllers/invitations_controller.rb b/app/controllers/invitations_controller.rb
index 5787ddf..8f331e5 100644
--- a/app/controllers/invitations_controller.rb
+++ b/app/controllers/invitations_controller.rb
@@ -9,7 +9,7 @@ class InvitationsController < ApplicationController
     if i.save
       i.send_email
       flash[:success] = "Successfully e-mailed invitation to " <<
-        params[:email]
+        params[:email].to_s << "."
     else
       flash[:error] = "Could not send invitation, verify the e-mail " <<
         "address is valid."
diff --git a/app/controllers/messages_controller.rb b/app/controllers/messages_controller.rb
index 1fbe9f1..1bf4957 100644
--- a/app/controllers/messages_controller.rb
+++ b/app/controllers/messages_controller.rb
@@ -12,7 +12,7 @@ class MessagesController < ApplicationController
 
     if @new_message.save
       flash.now[:success] = "Your message has been sent to " <<
-        @new_message.recipient.username
+        @new_message.recipient.username.to_s << "."
 
       @new_message = Message.new
     end
@@ -48,7 +48,7 @@ class MessagesController < ApplicationController
 
     @message.save
 
-    flash[:success] = "Deleted message"
+    flash[:success] = "Deleted message."
     return redirect_to "/messages"
   end
 
@@ -64,7 +64,7 @@ private
     if @message = Message.find_by_short_id(params[:message_id ] || params[:id])
       if !(@message.author_user_id == @user.id ||
       @message.recipient_user_id == @user.id)
-        flash[:error] = "Could not find message"
+        flash[:error] = "Could not find message."
         redirect_to "/messages"
         return false
       end
diff --git a/app/controllers/settings_controller.rb b/app/controllers/settings_controller.rb
index 4d0a0df..ca33d30 100644
--- a/app/controllers/settings_controller.rb
+++ b/app/controllers/settings_controller.rb
@@ -9,7 +9,7 @@ class SettingsController < ApplicationController
     @edit_user = @user.clone
 
     if @edit_user.update_attributes(params[:user])
-      flash.now[:success] = "Successfully updated settings"
+      flash.now[:success] = "Successfully updated settings."
       @user = @edit_user
     end
 
diff --git a/app/controllers/signup_controller.rb b/app/controllers/signup_controller.rb
index c2f2848..0233447 100644
--- a/app/controllers/signup_controller.rb
+++ b/app/controllers/signup_controller.rb
@@ -29,7 +29,7 @@ class SignupController < ApplicationController
 
   def signup
     if !(@invitation = Invitation.find_by_code(params[:invitation_code]))
-      flash[:error] = "Invalid or expired invitation"
+      flash[:error] = "Invalid or expired invitation."
       return redirect_to "/signup"
     end
 
@@ -39,7 +39,7 @@ class SignupController < ApplicationController
     if @new_user.save
       @invitation.destroy
       session[:u] = @new_user.session_token
-      flash[:success] = "Welcome to Lobsters, #{@new_user.username}"
+      flash[:success] = "Welcome to Lobsters, #{@new_user.username}!"
       return redirect_to "/"
     else
       render :action => "invited"
diff --git a/app/controllers/stories_controller.rb b/app/controllers/stories_controller.rb
index c2d040c..2367f8a 100644
--- a/app/controllers/stories_controller.rb
+++ b/app/controllers/stories_controller.rb
@@ -27,7 +27,7 @@ class StoriesController < ApplicationController
         Vote.vote_thusly_on_story_or_comment_for_user_because(1,
           @story.already_posted_story.id, nil, @user.id, nil)
 
-        flash[:error] = "This URL has already been submitted recently"
+        flash[:success] = "This URL has already been submitted recently."
 
         return redirect_to @story.already_posted_story.comments_url
       end
@@ -47,7 +47,7 @@ class StoriesController < ApplicationController
     @page_title = "Edit Story"
 
     if !@story.is_editable_by_user?(@user)
-      flash[:error] = "You cannot edit that story"
+      flash[:error] = "You cannot edit that story."
       return redirect_to "/"
     end
   end