Clark’s Cash Challenge: 5 Steps to Save More Money in 30 Days

Written by |

If you’re trying to save more and spend less, budgeting with cash is a great way to manage your money.

Does it sound too old-fashioned to you? I tweaked the cash envelope system to make it easier to follow in a digital world — and it has really helped me save a lot!

Now, I’m introducing Clark’s Cash Challenge to help anyone who wants to boost their savings rate.

How to Save More Money in 30 Days With Clark’s Cash Challenge

Here’s how it works: I’m asking that you choose one flexible spending category (groceries, home improvement, entertainment, etc.) and stick to a cash-only budget for one month.

You don’t have to wait until the first of the month — just commit to 30 days of budgeting with cash in one category.

There are people who refuse to try cash-only budgets because they’ll miss out on credit card rewards. That’s true. But if budgeting with cash lowers your spending by 10%, that 2% cash back from your credit card isn’t so valuable.

Are you up for Clark’s Cash Challenge? There are just five simple steps and you can get started right away…

1.Identify Your Cash-Only Category and Set Goals

Step one is to choose the single category that you’ll manage with cash for the next 30 days. You want to select a category where you think there’s room for improvement.

Here are some examples of variable expenses that may be good choices:

  • Groceries
  • Eating out
  • Clothing
  • Home improvement
  • Entertainment
  • Transportation
  • Hobbies
  • Personal care

I’ve selected groceries as my cash-only category, so I’ll be referring to that throughout the rest of this step-by-step guide.


Once you’ve chosen a category, set a budget and list goals for the challenge. How will you make the most of this opportunity and save more money? The act of switching from credit to cash is only a starting point.

For example, my goal to reduce grocery spending involves meal planning, trying a new supermarket and limiting store visits.

If you choose this category, see our list of 22 ways to save on groceries!

2. Go to the ATM! 

If you’re someone who puts most of your purchases on a credit card, you probably don’t have enough money in your wallet to set aside for Clark’s Cash Challenge — so you may need to head to the ATM.

Be honest with yourself: Only take out the amount of cash that you’ve budgeted for your cash-only category!

3. Get an Envelope and a Storage Box

When you get home from the bank, take the money that you got from the ATM and put it in an envelope with the name of your cash-only category written on the front of it.

I also like to use a plastic storage box for my receipts, but some people just stuff them inside the envelope with the cash.

Budgeting with cash essentials
Budgeting with cash essentials

SAVINGS TIP: Before I place my receipts into the box, I scan them using Ibotta, Fetch Rewards and Receipt Hog. They’re three apps that provide cash back for grocery store purchases.

4. Only Carry the Cash That You Need

Let’s say you’re going to the store and you need to buy something in your cash-only category. Instead of taking your entire envelope with you, only remove the amount of cash that you’ll need for that purchase.

And it goes without saying that you don’t want to use a credit card for anything you buy in your cash-only category.


5. Evaluate Your Results After 30 Days 

After 30 days of budgeting with cash, you’ll hopefully have at least something left in your envelope if you set a realistic budget and remained focused on your goals.

If you use a budgeting app like, check the previous month’s spending in your category. Was it higher or lower?

Studies have shown that credit cards can make us spend more, but a 30-day cash challenge like this can help you determine if that’s really true when it comes to your personal spending habits.

Good luck with the challenge and let us know in the comments if budgeting with cash works for you!

More Budgeting Resources: 

Welcome bonuses can be a great way to boost the value of a credit card. Best Credit Card Welcome Bonuses for 2022 - If you're in the market for a new credit card in 2022, you may be hoping to cash in on the hundreds of dollars in sign-up bonuses offered to new customers. Welcome bonuses and offers are a marketing tool that…
The best cell phone plans include Tello, Mint Mobile, Visible, T-Mobile, Consumer Cellular and more Best Cell Phone Plans in 2022: The Cheapest Plan for Every Need - Team Clark ranks the best cell phone plans and deals! See our favorites for unlimited data, families and cheap plans starting at $10/month.