is it considered as a multi to... (in General)

1) to use all your characters to fight/ forge and send all their money to your main character of your choice

2) since you cannot have more than 10 unequipped items of a category, can you send unequipped items to storage characters so that they rent them and send back the money to your main character?

Many people use storage characters.
A multi is only in effect if 2 or more accounts are involved, whether they are a single person or even a friend or family member sending all their stuff to the other person's account.

Not true, Zog. There's also the definition that relates to one account and more-than-one person.

'Spock, both of your given scenarios are fine. We all do it. ;)

I meant to include that with my second paragraph Bast, just
forgot to explain it a little better :)

thx!