Does anyone have any suggestions on where to buy a lens filter? I am not looking for anything fancy at this point as I am a beginner and just got my D3100. I wanted to get something to help protrect the lens so it doesnt get scratched as I get out and start shooting a bit more. Is there a general or basic filter you would suggest? I thought about ordering the Vivitar UV Protective & Polorarizer lenses through Staples for $25 but thought I would try some suggestions to see if they would work or if it's a mistake? Also, I wanted to get the hard plastic LCD screen protection, any tips where to get one or should I just go with the sticky protectors like you can get for a cell phone? Thanks & I can't wait to start posting photos for some CC!