BLANKET
If the temperature gets cold, the Sarong Sling is a very convenient cover.  If you are carrying the baby in the sling, just bring the upper edge (or outer edge, depending on which position you're using) of the sling over the baby's shoulder, or even up pass the ears & head.  This will shield the baby from cold winds.  In Singapore or other hot countries, it would be good in sheltering from dust in the air & roads.

You can also use the sarong sling to simply cover the baby if he's sleeping in the carseat, in the stroller, on the floor.
 

SHELTER
When the sun is hot, or if it's only drizzling, I will use the tail portion of the sarong sling to cover the baby while I walk to the nearest building, car, or other shelter.  Also good for shielding baby from strong winds.
 

DISCREET COVER FOR BREASTFEEDING & PUMPING
You can use the tail as an additional cover when trying to latch the baby on to breastfeed.  This may be especially useful in the initial few months when baby is still young and need help with latching-on.  OR if you're like me who likes to pump milk in the car, you'll find the sarong sling to be a very effective cover from people in passing trucks & buses! Just have your pump funnels on, and drape the sling (still looped) over the funnels.  It really works.
 

TROLLEY HARNESS
Most shopping trolleys in Singapore do not have safety belts attached.  For added safety, after putting baby in, I place the sarong sling around the baby's chest, and around the seat of the shopping trolley, then tighten the fit by pulling the tail through the rings.  It's even better if you take the trouble to thread the sarong sling between the metal rails of the trolley seat.  As for the excess tail fabric, I just fold it up & place behind baby for extra cushioning!

TODDLER HARNESS
You can also use it as a harness for a walking toddler so that he won't run too far from you.

TRICYCLE HARNESS
Another great use is for the toddler who WANTS to cycle, can push the tricycle pedals, but does not have enough strength to keep up with his/her older siblings or cycle up a hill slope.  Tie the sarong sling to the tricycle under the handlebars and put one side on top of the "honk".  I could also use the sling to help regulate the tricycle's speed when it was going down a slope - just pull on the sling but you have to be standing behind the tricycle.

MAT
Just place the sarong sling on the floor or field, and the baby has a convenient place to lie down & stretch his limbs!  Our young baby also loved this while watching his Daddy play his remote control car.
 

CLOTH
If you need a cloth but don't have one on hand, the tail of the sarong sling comes in handy!  But... do wash the sling when you get home later!

FOR PLAY
Place one end folded into your drawer, and the other secured on your bed, and your toddler will have a little "tent" to imagine play under!  Other children have used it to play "Lion Dance" with their other siblings.

Oh, and we did find it VERY useful recently for tying our goods trolley to the back of our car seat so that it does not shift and knock around the back of the car!!!