Careful - rent control is specific to where you live. Unless you’re friends with op, there’s a good chance the rent control rules are very different for them. For many people, rent control is only on buildings built prior to 1970. But I agree they should check their local laws.

Other person mentioned already, but a lot of products that claim to be beneficial (or just suggest it) aren’t really, such as “essential” oils.

People with asthma can be triggered by them (due to the VOCs they release) which (imo) means even healthy people should probably avoid. Source: American Academy of Allergy, Asthma, and Immunology. https://www.aaaai.org/Allergist-Resources/Ask-the-Expert/Answers/Old-Ask-the-Experts/oil-diffusers-asthma

Agree that keeping the home in order makes everything easier, i.e. don’t lose your keys and then be late to class or an interview.

Garbage disposals break easily, be care what you put in the sink (ideally just water). certainly no lemon seeds or coffee beans.

Also as others said: no grease down the sink, have a spare key in the car or with someone you trust, document everything, and if any issues come up, deal with them immediately. Like if you see a leak or smell something funky, contact the landlord and then follow up regularly until they deal with it.