I Didn't Know That

Walmart considering online grocery delivery in California. Walmart makes 54% of its revenue from groceries. That surprises me, although I don't know why. I spend most of my discretionary money on food. My monthly nut is rent, utilities, insurance..after that, the spending is food, gas, entertainment, clothes, and other discretionary items depending on the month. I think about what I spend money on and it continues to puzzle me how things like Facebook and Google are considered so valuable, since I spend exactly zero on them.