One more venture into the land of unwarranted words, repetitions and sinful syntax. If you’re a guilty party, you’re sentence is a series of serious sessions studying Fowler’s Modern English Usage!
Advance planning: Planning, by its very nature nature, is done in advance, otherwise it’s not planning, is it? Keep ‘advance’ for your language studies.
Filled to capacity: If you fill something, you do so to capacity. No need for both words to describe this.
Join together: You know, you can’t ‘join apart’, you can, in fact, only join things, people etc., in a manner that brings them together. ‘Together’ isn’t needed.
New beginning: Something begins when it’s new. ‘New’ is superfluous.
Completely filled: See above. Something that’s filled is thoroughly so. Whilst you need a modifier if something is only partially filled, you don’t need it when the deed is completed.
Forever and ever: A dubious duplication encouraged by some fairy tales and, unbelievably, the Lord’s Prayer! If it’s forever, it can’t be for any longer, so the second ‘ever’ is redundant.
Same identical: Something that is the same is identical. Enough said.
Therapeutic treatment: Off you go to the therapist for treatment. If it isn’t therapeutic, you aren’t getting your money’s worth, are you?
Unintended mistake: A mistake is an error, a slip-up, an accident. By its nature such a thing is not intended.
Absolutely sure: Sure about something? Then you have no doubt. Certainty (or being sure) is an absolute state, so ‘absolute’ is superfluous.
Yet another rant done with. But there will be more!