Get neem oil and use that
Neem oil is not known to be harmful to mammals, birds, earthworms or some beneficial insects such as butterflies, honeybees and ladybugs. However, Neem oil is not used for cooking purposes, its use is in preparations for cosmetics, soap, hair products, body hygiene creams and hand creams), It is also used as a folklore traditional medicine.
soap and very hot water!!
Yes, soap can leave spots on the leaves and may burn them. If you are using it in hopes to kill insects, it's best to use pure neem oil.
It is extracted by crushing or pressing the seed of neem,
Garbage container
Lowes sells neem oil in their organic pesticides section.
Neem oil is not used for cooking and shouldn't be mixed with another oil that is. Mixing them would reduce the usefulness of each.
Yes
Collect neem leaves, crush them and sieve off the solids.
lotion shampoo soap
Yes it's good to apply fresh neem leaves paste for excess oil on face.