No matter where you travel to, if you're gone for more than a week or two your clothes get dirty, three choices at this point
1. Pay for someone to wash your clothes
2. Buy New Clothes!!!!
3. Wash them yourself
Number 1 can be cheap or can be expensive, potential for clothes to be lost or ruined due to the person not washing them or treating them right
Number 2, really...but people do, do that
Number 3, it's easy have a look at the photo, that's a grand total of $16.55, for this little kit i carry on the road.
The washing line is a kind of a twisted bungee cord so no clips are needed to pin clothes to it and it'll hold clothes all night long in the strongest winds.
A sink plug/ stopper, it's surprising how many sinks in hotel/ motel/ hostels are missing the plug
A Platypus soft bottle, the reason I use this is when its full it's the biggest it will eve be and slowly reduce in size giving me a little extra room daily in my luggage if I'm moving. Also the cheaper version fail.
In virtually any country in the world you can find washing powder for $1 or less and that includes the US, for a small amount to fill the bottle
As an added bonus if you lose the Platypus lid, a coke bottle lid fits just fine!
This little collection has been in my travel luggage now for about five years