All year long, we've challenged you to save more, cut impulsive spending, and even earn some extra cash by cleaning out your closets. For this year's final Ultimate Money Challenge, we want you to gift yourself - with savings. In other words, save a portion of your holiday spending.

It's November, which means it's time for another brand spanking new money challenge. This month, we want you to reward yourself - with savings, of course.

The end of the year is approaching quickly, and as we get closer to December, we want to focus on saving for the holidays. So this month, our challenge is simple: Clean out your closets and make some extra cash while you're at it.

Last month, we challenged you to save money on your mobile phone bill by switching to a cheaper plan. This doesn't necessarily mean you have to switch carriers, though. You might be able to negotiate a better price with your current one.

Believe it or not, it's time to start saving for the holidays. Gifts, travel, parties -- these expenses creep up on you fast, so you want to prepare as soon as you can (and that means now). To help you save, this month we're challenging you to cut back on a common splurge: Restaurants.

We've thrown all kinds money challenges at you this year, and all year long, you've been acing them. This month, we want to help you save on a specific expense: Your mobile phone bill.

Happy May, money nerds -- it's time for our next challenge. This month, we're bringing back a classic. We want you to flex your negotiation muscle and start haggling.

That's a wrap for the first ever Lifehacker Ultimate Money Challenge. If you joined us at any point in this journey, we want to hear from you. If you didn't, but you have a few ideas for 2017, we want to hear from you, too!

We have just two months to go in our Ultimate Money Challenge. As we near the year's end, we're focused on holiday spending. This month, we challenge you to clean out your closets, get rid of some junk and make some cash in the process.

This year, we've challenged you to haggle your bills, tame impulsive spending and even save for retirement. Many of you have saved hundreds, and some of you have saved thousands. This month, we're taking it back to the basics with an old school challenge that everyone can easily join: Keep the change.

So far this year, we've challenged you to cut your bills, curb impulsive spending and even save for retirement. This month, it's time to hone your haggling skills.