Everywhere I've lived non-scheduled bus routes run like every 5-10 mins anyway.
Also, just walk for a bit? Or instead of doing a grocery trip pick some stuff up on the way home every day, one of the advantages of cities is usually, bus or walk, there's a grocery store on your commute home. Like you don't need to isolate every bit of your life.
Fuck there's even bicycles made to help you carry several bags back as well (I've also seen people with those sweet foldup carts too which are nice)