Your pictures and other online files no longer belong to you
Anyone who posts images online should be made aware of the new legislation being passed by the UK Government means that as long as a company can "say" that they have performed "a diligent search" for the owner of the work then they will be free to use your photo, music, book etc......
Always Carry a Bag of Rice
One or the first things that I advise students to do is to get a tripod. In the search for the perfect picture you may find yourself in low light and needing a long exposure or you may wish to be in a picture. The tripod is probably the second most important piece of equipment after the camera and lens