In Thailand it can be hot and sweaty. A light weight thin piece of fabric can absorb that sweat around your head of wrist. On a motorbike you can use it as a scarf to protect your mouth from flies and dirt. In busses it can be chilling cold because of the airconditioning. Then you can use it as a scarf to give you some extra warmth. When sleeping in a bus or hostel you can use it as a blind coffer for your eyes. Also suitable for naughty sex games.
When you are travelling you need to wash your clothes sooner or later. Luckily you can find many laundry services in Thailand. They will wash and dry your dirty clothes for 40 to 200 Thai Bath. But sometimes you just want to wash one or two items or you just stay one night in a place. Then it is an option to do a quick hand wash in a bucket or in the bathroom sink. For these situations it is super handy to have your own small rubber bucket with you. It is light and it doesn’t take much space in your suitcase or backpack. In case you don’t have soap with you you can always buy some in a small package at the 7-Eleven. Or you can off course use some shampoo or shower gel.
The Dutch / Belgian military rubber bowl will stand right up by the pressure of the water what is inside. The bowl isn’t that big (approx 4 litre) but it is large enough for a T-shirt, a pair of socks, some underwear and a short. Just let your laundry soak in the water with soap for a few hours and then wash the soap out of the laundry under running water from the tap.