Join the picket line if you have time. Order pizza/coffee or whatever else if it can lift morale. See if you can organize a teach-in about labor rights, about Amazon/Bezos abuses, or historical Teamsters Ws.
Morale is the most important thing on a picket line, and it is also the place where people learn solidarity and raise their class consciousness the most. Any amount of support means a ton.
I will always stand with teamsters and join their pickets if they are in my town. The teamsters stood with my union and didnt make deliveries to our boss when we were on strike and i will never forget that.
Dont use the 99.9% pure, well regulated product! Use the stuff we found in the dirt instead.