Two weeks ago, in How to Save 70,000 Miles on US Airways Awards to Southeast Asia, Bill blew people's minds with his post about one of the biggest tricks you can pull with US Airways miles:

When routing from the US to South & Central Asia, you can save up to 70,000 US Airways miles by adding segments from Mexico, Central America, or the Caribbean to your home airport before the main award.

The four step process is not difficult, but it is new, so there was some confusion in the comments section of that post.

The 50k mile bonus offer is back on the Lufthansa card mentioned in this post until 6/30/14.

Mashable readers: Welcome to the best blog on redeeming frequent flyer miles. The way that I've traveled to over 20 countries this year and spent nine months abroad is by signing up for credit cards and using the miles to book business and first class awards.

Here is a post that explains to beginners what I do and why I do it.

Mashable readers: Welcome to the best blog on redeeming frequent flyer miles. The way that I've traveled to over 20 countries this year and spent nine months abroad is by signing up for credit cards and using the miles to book business and first class awards.

Here is a post that explains to beginners what I do and why I do it.

There are currently four stackable promotions related to US Airways miles.

Barclay's is offering US Airways Premier World MasterCard holders up to a 50% rebate on redeemed miles between and November 30, 2013 up to a maximum of 30,000 rebated miles!

This is an incredible deal, and complements Monday's Share Miles deal that I called "the best opportunity to buy miles all year."

Are you eligible for a 50% rebate on your US Airways awards?

A card offer in this post has expired so its links have been removed. Click here for the top current credit card sign up bonuses.

We're three months away from Christmas. If you know you want to visit family over Christmas, and you haven't yet booked your ticket, it is not too late to get home for Christmas for free.

But you have to start planning now. What's the plan?

First let's talk about how you shouldn't try to get home for free.

US Airways emailed me the following yesterday:

It's some slick marketing, but I won't be taking advantage of any of the "new" benefits. I have a US Airways Premier World MasterCard, so you'd think I'd be excited, but I'm not.

Why won't I be taking advantage of any of these generous-seeming new benefits? Let's go through the "additional travel benefits":

Zone 2 Boarding and First Class Check In: While nice, these aren't new and have been benefits of the card for a while.

Update: Several--if not all--of these offers have expired.

This post will explain how a couple can get 10 nights for free at a top-tier hotel in Hawaii plus First Class roundtrip flights all for about $150 per person total.