Do you have one of those above, S.Bengi? I've looked for these online and don't see anywhere still selling them. They seem quite interesting.
My husband and I did laundry by hand for two+ years, just using a big plastic tote. Totes. You can just throw stuff in the tote with hose water, and Dr. Bronner's Sal Suds, or sodium percarbonate (dry H2O2) depending on how dirty they are. Then agitate with your hands or feet, and let soak. Soaking seems to do more than agitating in most cases- exceptions being clothing with major stains. For, say, major dirt, blood or grease stains, spot cleaning by hand works best. Then pull the clothes/towels/bedding out and put them into the second tote to rinse. Repeat if needed.
It's like a washing "assembly" line... Good to set it up next to a planting bed(s). Sodium percarbonate shouldn't be dumped in one spot too many times on account of building up salinity - but if you do it a few times a year in an organic
gardening bed the plants will explode in growth. Most love hydrogen peroxide.
The real hassle, in my experience, is wringing them out. If I ever have to do this again I will get some sort of wringer. That would be the real time and energy saver. Not having a wringer we did it all by hand, including bedding, during that time. It's a real pain in the arms! I've had friends use manual wringers, and other friends who were traveling and camping and relied on small electric spinners that they said did wonders for getting the water out.
Then, in case it's not obvious, we hung clothes on a line. The most effective, strongest outdoor clothesline setup is the old fashioned "T" metal post. Those are the only ones I've found that can hold up in 30-70 mph winds with clothes or bedding (i.e. that you didn't have a chance to pull off the line before the sandstorm hit) on them.
The types with a single pole are not able to withstand high wind. When we first moved to the desert it was quite a clue that we saw T-post clotheslines set in concrete at most of the homes for sale that were built prior to 1960...
Like this type:
