On FlyWright, I take daily "navy" showers which only use about 1.5 gal so no need for extra deodorant! (I calculated this volume when my shower sump pump failed and I had to bail out the shower pan for a few days.) Last summer, I experimented with a solar shower bag for yuks that I filled with fresh water and threaded the hose through the portlight and into the shower for use. It worked very well and provided water that, at times, was too hot. Next summer, I may experiment with using our fresh river water in the bag for additional water savings. Of course, fresh water swims reduce the showering demand.
I don't have laundry capability onboard but also favor synthetic material clothing to ease the cleaning and drying. Laundry facilities are fairly easy to find in the California Delta for use every 3-4 weeks.
I carry 75 gal fresh water in my FW tank plus an additional 35-40 gal of drinking water in one gallon jugs stored in trunks in the ER. This makes 3 weeks of water relatively easy when solo.
I also reposition in the delta periodically but have been known to stay in one spot for 14-16 days. My Balmar 100A stbd alternator provides great recharging for my house bank on repositioning runs. The addition of 500W solar to augment the generator and alternator charging has been a big improvement. Under normal conditions when stationary, I run my generator for 1-1.5 hrs when cooking lunch or dinner if I don't reposition for a few days.
When I'm aboard, I eat very well with mostly pre-prepared meals in single portions and frozen in vacuum seal bags. I use very little processed food or boxed frozen meals, but cook with natural ingredients and spices. I can prepare about 3 weeks of food at home then store it aboard in the 2 fridge/freezers. I also carry all the cooking appliances I need with grill, microwave, Instant Pot, electric skillet, air fryer, coffee pot and propane stove/oven (rarely used any longer). This allows me to reprovision and cook as I do at home while aboard for extended trips like during my 106-day Coronavirus Cruise March-July 2020.
The California Delta is a very friendly place to cruise and anchor out for extended periods with countless anchorages throughout 1000 miles of mostly benign, fresh water waterways and NO ALLIGATORS!! Many marinas provide free pumpout service and fresh water refills. There are also plenty of bars/restaurants to grab a meal or a drink on dry land when the spirit moves me. Reprovision runs need to be planned for towns with nearby stores like Rio Vista and Benicia. Fortunately, my marina is centrally located close to Rio Vista, Isleton, Lodi Walnut Grove and Stockton so I can have easy access to my car when needed for reprovisioning runs, repair/servicing parts and church attendance.