[debono]

very simple.
always order more spares.
when left 1 full bottle, order another 2-3 bottles. you will never run out of soya sauce.

use the stair case instead of lift. you will be alone, no one uses the staircase anymore.
if someone uses it, you can wait until the staircase is clear.

For shopping, you can go to shops which open 24 hrs like NTUC/PRIME mart.
Go there at 2am to 4am, there will no customer or people on the street.

Oh, you want to avoid people as much as possible cos you don't want to be infected with the Covid-19 virus, but then there are some places where it is not possible to avoid meeting people......