Create routines, always send out communication with your peers and ETLs, ensure guest service is efficient, and keep an eye on MyGuest to identify trends and areas you can improve.
I often grab about five cashiers and teach them how to Plano, pull batches, shoot labels, and fill. This is half the battle. Development is really the biggest thing. Hard to do at this time due to seasonal, but definitely something to work on. Stronger team equals stronger results.
I like to make the first week of each month the "refresh week". So that means retraining cashiers, even the vets, about how to stop shortage, WiC, Tax Exempt, gift card protocol, driving conversion, simple returns, etc.
Have someone do regular equipment audits as well. Also try your best to never call the LOD. At the end of each month I ask cashiers to give me three things they either want to learn or improve on. I then try to help them with that.
Those are some of the things I do. However, every store is different so you have to adapt. I hope you find what works for you and succeed.
SilentCrow