I just got a delivery 30 minutes ago, in fact. For years, I'd used Safeway.com's delivery services and now that I have used Instacart, I'll never go back. The UX is 100x better, delivery is much quicker (and cheaper), and I can order on my phone.
Woah, I've been reading PG essays and the HN comments by you and the other YC partners for several years but didn't realize you two have kids!! Congratulations! I imagine they'll have incredible futures ahead of them growing up in such an intellectually stimulating environment/family!!
Again, congratulations PG/JL! I'm sure you two will be wonderful parents! :-)