How can you make your dull white uniform whiter?

Here are a few tips to make your dull white uniform whiter:

- Use a high-quality detergent. Look for a detergent that is specifically designed for whites and contains whitening agents.

- Add baking soda to your wash. Baking soda is a natural whitener that can help to remove stains and dirt from your uniform. Add about 1/2 cup of baking soda to your washing machine with your detergent.

- Wash your uniform in hot water. Hot water is more effective at removing stains and dirt than cold water.

- Use a bleach alternative. If you don't want to use bleach, you can try a bleach alternative such as hydrogen peroxide or borax.

- Dry your uniform in the sun. Sunlight can help to naturally whiten your uniform. If possible, hang your uniform outside to dry.

- Avoid using fabric softeners. Fabric softeners can leave a residue on your uniform that can make it look dingy.

Here are some additional tips that may help:

- Pretreat stains before washing. This will help to remove stains more effectively.

- Wash your uniform inside out. This will help to protect the fabric from damage.

- Avoid over-drying your uniform. This can damage the fabric and make it look dull.