title_body: Storing cream in my office
upvoted_answer: Companies (including Nestle) make creamers that do not require refrigeration.  They are likely available in your local grocer, you just need to check the label and make sure refrigeration isn't required.  
  
  If you are paranoid about potential bacterial growth or contamination (like me) you may check into bulk buying the single serving creamers that they use at restaurants.  They require no refrigeration either and are sealed until use.
  
  If you are looking to keep "real cream" cold for 8 to 10 hours, you may want to look into some sort of freezable lunch bag or small ice chest that will stay cold and takes up less space than a mini-fridge.  This would require substantially more effort, but may be worth it if you are particular about your cream.  Also from the comments below, you may look into a double wall vacuum thermos.  They are increasingly popular and come in a wide variety of qualities and prices, so do your research before buying.