First time seasonal.. question on tanks and slide?

We traveled full time every week/2 weeks for 7 yrs. closing and opening 3 slides.

Waste tanks......dump them when they get full. Even if it takes a couple of weekends.
Odors.......there should be no odors inside the RV. If you smell odors find and fix the problem letting the odors come inside.......seals, 'p' traps, gaskets, vents etc.
When the waste tank system is correct odors don't happen.