What is "essential" for a happy life?

[SleepyWitch]

which products/goods/amenities/inventions do you consider essential for a humane, possibly "happy" existence?
which are not absolutely essential but would be nice anyway?
which are totally nonsensical and unnecessary?

can you list some products/goods/amenities/inventions and rate them as either

- essential = everybody needs them and should have them
- not essential but nice
- unnecessary = they don't make people happy, nobody needs them

[BibliophileTRJ]

ESSENTIALS
1) Food
2) Water
3) Shelter
4) LOVE

NOT ESSENTIAL BUT NICE
1) Clothing
2) Mattresses
3) Indoor Plumbing

UNNECESSARY
1) Everything Else

[Niamh]

also fire to keep us warm.

[SleepyWitch]

what about education of some sort? even if it's only "how to light a fire or build a hut for shelter"?

[BibliophileTRJ]

what about education of some sort? even if it's only "how to light a fire or build a hut for shelter"?

O.K. I'll buy that. But, still, I'll put "basic survival education" under NICE BUT NOT ESSENTIAL.