Asklemmy

Bidet attachment for a toilet. You can get them cheap, or spend a bit more for heated seats, warmed water, fans for drying, etc. Best bathroom decision ever.

Countertop electric water distiller. For a reasonable price you can get a countertop water distiller that runs a gallon for like $0.15. No more microplastics, chlorine, ammonia, lead, or facial matter in your drinking water! Tastes SO GOOD, nothing like the plastic filled distilled water from the store, blech. Every time we make a batch, we'll smell the sticky residue left in the heating chamber and gag. It is nasty stuff. In our tap water, gross. Clean water for me please! Makes our coffee, tea, and kumbucha taste a lot better too.

Getting into a healthy BMI and daily exercise is pretty epic too. You'll just feel better every day.

As climate change gets worse, having resilience like stored food and water will be helpful to deal with more frequent natural disasters. No sense bothering with fancy meal packets, a couple dozen big cans of dried beans will go a long way if there's a shelter in place order.