Cable management at the desktop is pretty simple. But the submitter was asking about MDFs, IDFs, and comm closets. You should really avoid velcro and cable ties there.
Start with good comm layouts. We use 48-port 3750s with a 48-port patch panel right under the switch. Then, 1' CAT-6 cables are used to patch all the drops hot.
If you are stuck with an older layout where switches are in one rack and patch panels are in another, then get some vertical and horizontal cable raceways. I *love* the ones with little plastic "fingers" that have a plastic cap over the front.
http://www.belkin.com/IWCatSectionView.process?Section_Id=43
Get loads of pre-fab cables in every length you can think of. I find 3', 5', 7', 8', 14', and 20' are most used.
I have tried labeling individual cables, but I found that it's better to have a cut-sheet inside the rack describing the patches. Write this in *pencil*.