I am ready for a rack for my bike. It is just too uncomfortable and heavy for me to carry all my stuff in a backpack. But...and this is embarassing to ask...how do you get them on? I have shopped around for them, and there doesn't seem to be much information about that little detail. I don't have much for tools, which is why I ask. Also, can you take them off when you are not using them? Some day I will get a second bike and will be able to just use this one as my commuter, but until then, I hate the looks of them when not in use (there is another thread about this, so I know I am not alone).

Also, part of my commute is through a very dark bike path. I have a light, but it only shines well a few feet in front of my bike, and it's easy to over ride them. Would a helmet light be a good addition?