Proper care of your clothing can extend a garment's lifetime considerably. What you can do:
Try to wear your garments a few times at least before washing. Not only does this save the environment by using less energy and water, but the fabric won't be as worn out from all the tumbling and stretching in the washer.
STEAM YOUR CLOTHES
If you wash less - steaming is a great way to keep your clothes fresh. It kills bacteria, reduces odour, removes wrinkles and is more gentle than ironing.
WASH INSIDE OUT
This especially keeps darker colours from fading quicker, and to let the wrong side of your clothing take any potential damage from the wash.
WASH IN LOW TEMPERATURES
Higher temperatures can more easily fade, damage and shrink the garment. It uses more energy as well. Use a detergent that is suitable for wash in low temperatures - this will ensure your clothes get clean.
HANG DRY - DO NOT TUMBLE DRY
Tumbling your clothes does more damage to the fabric. Shake your clothes out to minimize wrinkles before hanging them to dry.
CARRY A STAIN REMOVAL PEN
Removing stains when they occur raises the chances of getting rid of them. By having a stain removal pen with you at all times you can save it from going in the washer.
AVOID DRY CLEANING
Dry cleaning uses harsh chemicals that can harm the fabric and the environent. Opt to steaming or freezing your clothes to kill bacteria.
HANG OR FOLD YOUR CLOTHES PROPERLY
Thin hangers can stretch out the shoulders of your clothing, making them lose its shape. Alternate to for example wooden hangers. Fold heavy sweaters so they don't stretch.