Bottle washing tips

Mi

First time momma here...

I have some wonderings about bottle washing and I’d like to hear y’alls suggestions!

-If we wait to wash bottles at the end of the day, should we keep them in something during the day or is it ok for them to sit in the sink all day?

-With all the bottle washing we are doing, we are considering getting a dishwasher. Has that worked well for anyone?