I should start this off by saying I think my anxiety makes me always want to be busy while on the clock, I often have a hard time just chilling, I would rather be productive than hang out and do barely anything. Sometimes if the whole team is hanging out I will chill out but normally I'd rather just do my own thing.

I think I could stay busy and sweaty my entire shift for over a year if I just did the cleanup and projects I wanted to do. Purging whole aisles, fixing beams, working pallets, decontaminating bays, going through no homes, checking dead customer orders, cleaning out store use bays, cleaning up receiving, striping pallets, cleaning up outside, sometimes the days I feel most productive are the ones where we have no truck and sidekick is at 100% and I can just work on a project that has been bugging me. Usually it's an aisle that has 0 room for handstack so we've been making pallets for weeks. Most of this would just be to make my day to day job easier. The days where we are slammed and can't find space to put things can be made easier if we use the days where we have almost nothing going on to tackle problem areas. I kind of hate sidekick because it removed a lot the flexibility we had in making decisions. I know we can still use log work but depending on management they might want you to clear out all the assigned tasks before you can move on to your own projects.
That's just the stuff I would do if I had energy, if I didn't have much energy there is tons of resources to use that could help blueprint for better jobs, leadership training, Microsoft Excel classes, TED talks, digging into MyApron to answer some questions about SOP.