Fitness supplies are overpriced, so go rogue and make your own equipment. To make a water ball (basically a larger, water-filled sandbag), fill a flat exercise ball with water and get pushing! Check to make sure the ball doesn’t have any holes or a leaky seal, or you may need to break out the mop.

Do It Today: Change up your weight routine without fancy equipment by making a water ball from a deflated exercise ball.

Dairy Queen (or King)

Why stop at gym swag? Making yogurt at home is cheap and surprisingly easy.

Around the House

Forget the gym — these daily activities can work up quite a sweat.