One thing I've noticed from doing WFH all this time during the pandemic is that I started noticing the inefficiencies of burning gasoline to move a one ton piece of metal to some store and do some minor thing like mail a package or buy some small items.

You can help that by shopping for an entire week at a time. I think some places will pick a package up from you too.

In general the first step to cutting emissions is electrifying everything that can be electrified. Whether moving lots of metal around in a vehicle is efficient regardless of energy source wreaks of the perfect becoming the enemy of the good - or in this case the perfect being the enemy of the critically needed change.

I think the first step to cutting emissions is cutting unnecessary energy use, regardless of the source of energy.

Try crunching the numbers: you'll see that it's not going to be feasible to replace all of the vehicles on the road with electric cars and trucks, while also electrifying everything else. We need to take a triage approach to energy use, strictly rationing the remaining fossil fuels.