Use of the word "and" more than once in sentences.

[Ian_M]

Hello,
Two (associated ?), questions. Is it grammatically correct and/or acceptable to use the word "and" more than once in a sentence?
The reason I have said 'associated' is that I have been taught never to start a sentence with a conjunction, in this case, "and". But if the sentence is intended to join two phrases or clauses, then the word "and" can appear in the sentence more than once.
I hope a long running debate can be brought to a satisfactory close.
Many thanks. Ian Mathieson.

[Temico]

But if the sentence is intended to join two phrases or clauses, then the word "and" can appear in the sentence more than once.

Do you realise that you have just started a sentence with a conjunction?
I have been taught exactly the same as you have, but, to be honest, I have come across countless sentences using much more than one "and" and also quite a few which started off with "conjunctions", and that includes official documents! (BTW, I have deliberately used two "ands" in this sentence.)