Now it's easy: wash, dry, use and abuse 
To wash:
If possible with liquid detergent (to avoid leaving residue)
No fabric softener – adding a little white vinegar can help soften tougher fabrics
Few rotations
Low temperature
Dry:
Preferably without sun
Spread in zigzag (except wool)
Avoid drying machines (when possible)
Use and abuse:
No moderation
With much love
How to soften a cloth/ring sling:
Use as a car seat, sofa
Put under the sheets
Braid
Steam ironing
Tips :
It should always be washed before use (no matter how tempting it may be, so that the fibers adjust naturally and nothing gets damaged :p )
Ring sling :
Wash inside a pillowcase to avoid scratching the rings or damaging the machine or rubbers.
Backpacks :
Avoid frequent washing due to the sponges they may contain. Hand washing can be a good option. To protect buckles and sponges, place them inside a pillowcase. Sometimes a damp cloth will remove dirt.
