Vacation: What to turn off

[Higgy]

Hey all, so we're heading away on vacation soon for 3 weeks and I'm trying to figure out what to turn off, or if I should turn off certain things. We live outside the city and have a water softener that recharges every night. I'd like to turn that all off, but is it ok to do so (as in, will turning it off wreck the softener?), and if so, is it hard to do? Also we have a gas hot water tank. Can I shut the water off to this? Will that wreck anything?

I want to leave the water on to the outside water hose as I want to set the timer for watering my garden.

Looking for advice on what others do, have done. Thanks.