We printed headers, like;
Biographical pages of abc
Stapled passport copies of the person.
Page with header : "Language Proof of abc"
Degree/diploma/transcripts (whatever is available) attached. Stapled my transcripts envelope with header infront.
I followed checklist and held them together with a large clip. Had family package so it helps to separate the applications, so that's documents don't mix, and makes it easy for the officer. It's a personal preference. Sticky notes should work too.