With few items, it easier/safer to use the fridge for everything, are there trade offs?
Besides the issues already mentioned, you should also beware of storing some dry goods in the fridge, especially if you live in a high-humidity area.
Basically, every time you open the container outside of the fridge, you will exchange it for more humid air.  In the fridge, the moisture will condense.
If you're storing something in amounts similar to the amount that you'd use at once, this usually isn't a problem.  It's more of an issue with items that are used just a little bit at a time, especially if they might clump up or have reactions to moisture (such as baking powder)
There are also a number of fruits and vegetables that may do strange things when in the fridge.  (tomatoes lose flavor, potatoes get sweet, etc.  See Which fruits and vegetables should be kept in a fridge, and which outside? ).  Also, it traps ethylene gas, so you may have issues if you have both ethylene producing and ethylene sensitive foods in your fridge.