You probably did this a few years ago when Atlanta was in a deep drought and everyone was hyper-aware of water usage.  Why not now too?  Keep a bucket in your shower to catch the water before it warms up, instead of letting it just flow away down the drain.  Carry it out to water your garden and pots. Even if you can’t carry that bucket out to your garden, you can still use that catch-water right there in your bathroom and reduce your water usage.  Flush with it!  Just dump it into the commode (not into the tank at the back) instead of using the flush handle which empties the tank and makes it fill up again. The average flush uses 3 ½ gallons of water from your tank!  Not sure if this works? Try it once, and report back to the Club.