I’d be soaking overnight in nappy san before washing. You can even wet and concentrate a blob directly on the stain. . I’d do the same for the shoes if the stain is on a canvas area or use gumption if vinyl.

Yellow shirt Aldi Stain remover is the best and if it needs a second go leave overnight in Aldi Stain soaker. As for the sports shoes white Gumption or PINK cream is great. I have been known to throw the shoes in the washing machine if they are canvas or material ones. Leather cleans up well with white toothpaste. I also used Denture Cleaner Tablets dissolved in a bucket and left the tennis shoes in the solution overnight and washed clean in the washing machine. They come out whiter than white. I also use this solutions on white cotton singlets and tops.

I firstly treat as soon as I can to ensure the stain doesn’t set. I pre treat it with Aldi stain remover let sit for about 5 minutes, then I soak in warm water with some sard dissolved in it for about 3-4 hours. I then pop it through the wash & usually that helps remove most of it if not all

Aldi stain remover spray is the best stuff

Try a stain remover. But I never get it all out.

Always get straight onto stains before they take hold.

squeeze lemon over the stain and leave for 30 min.

Shirts get soaked in a preferred stain remover.

The Aldi stain remover does the trick! Or a small amount of dishwashing liquid on the stain is also good

White shoes, depending on the material made with, I will wash in machine with bleach.
If leathery, I use gumption.

Personally I swear by Sunlight pure soap. I treat all hard stains with it with a good scrubber and hot water.

I second the Sard Wonder soap recommendation. It’s amazing

For the yellow sports shirt I would recommend the stain remover from Aldi it works really well or the Sard Wonder Soap and for the shoes the sneaker magic eraser sponge. I have used these items and they have worked for me!

For the yellow sports shirt, pre-treat stains with a stain remover, then wash it in cold water with detergent. For the white school sneakers, scrub gently with a toothbrush and soapy water, then rinse and air dry.

For shoes I use a shoe specific cleaner purchased from hype. For clothes, I love preen vanish spray. I gently scrub at the stain that I’ve lightly dampened. If it’s still there, I’ll give it a soak in some sard powder. My like Green dress I adore keeps getting stains. This combo worked wonderfully when I had some huge dirt scuffs across the back. Just don’t soak too long, it might fade colours a little.

have you tried using the magic sponges you can get at the supermarkets, they are fantastic as taking stains off walls, might work for the school sneakers.