Nothing.
For two months of stay-at-home we've been doing our regular shopping once a week. Buying a little more than usual since we're eating meals at home that would normally be eaten out, but less than 50% more. Easy to say since the stores we visit have been limiting how much people are allowed to buy at once to discourage hoarding, and we have been able to get take-out food for at least 4 meals a week, partly for variety, and partly to give business to our favorite non-chain restaurants that really need it.
Definitely recycling alot more takeout containers since we're not eating at restaurants yet.
I did make one big buy at the beginning of this month: couldn't find Tilex anywhere local so I ordered a case on Amazon for a reasonable price. Kept two to use and gave away the rest to neighbors in need.
[Edit:] I'm going to have to make a run to the liquor store soon... running low on rum for hurricane season!