Storing cream in my office I have a coffee maker in my office, but no fridge for my cream!  Unfortunately, even a mini/bar fridge would be too big for my office.

What other options do I have for keeping cream good for 8-10 hours?  I can bring just what I'll use for the day in the morning.  The room is kept at 20-22C all day.  How long can cream be stored at room temperature before it is risky to use?
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.