What worked for me on my first office job
I had my first opportunity to organize an office last week, and I was very nervous because I had never done one and felt the process may be different from other spaces. This is what I ended up doing, and it worked very well for me, so I am hoping it may help someone else in the same situation.
The space had a large amount of clutter and files. She already had two work surfaces, so I cleared one off and had her sit there, but a card table could have been set up if that wasn't the case. I had several banker boxes lined up and labeled for sorting, and I gathered up the files and piles of papers and set them in from of her to sort, replenishing the pile as it went down. While she sorted, I grouped together all non paper items by category and reset the space as it cleared. This worked very well for the preliminary session. We set up a second session to organize the files and papers she decided to keep. We have a lot of extra room now after the purge. Hope that is helpful for those starting out. If anyone else has different suggestions, I would love to hear!!