Looking after three separate school libraries necessitates being organised. Here are some of Celine's tips:

My first piece of advice would be set up a google drive with folders for all library operations including everything from CBCA awards and promotion, professional reading, professional learning, budget, stocktake, etc.  The content in folders could be easily deleted and updated. 

I have a filing cabinet draw full of Puffin activities downloaded from their website; these make great gifts for students and for Book Week

I put all the different alphabet cutouts in the vertical file under a searchable category 

I use Aldi takeaway containers - great for organising all the library bits and pieces