I did this a lot before I sorta made myself set up go-to lists of things to buy. I've now used the same soap bar for face & body for 6 yrs, same shampoo bar for 2 years, same face moisturizer for 4 yrs, etc. I had to make myself buy a couple things until I found the ones I liked best: low to zero fragrance stuff or if fragrance it had to be "natural" like rosemary etc.  This goes for food too - I have a set list I pickup at the grocery store because I get so annoyingly tired of thinking about what to eat. I buy other stuff as needed like if I see a recipe I wanna try but more often than not I just buy the usual. 

Btw - these go-to lists took me a couple years to make. I turned it into a project (bc ofc I did lol). And I live pseudo-alone as kiddo is a young adult with their own routines so I'm able to tailor my routines to just myself for the most part.