Friendlyskies, , about 3 years ago, when this liquids ban was really beginning to get on my bits, I had valid prescriptions and dispensed prescription labels on the following items:

1) Branded protein shakes (8 fl.oz)
2) Branded High protein yogurts (4-8 fl.oz)
3) Fuze beverages (18.5 fl.oz)
4) Branded Contact Lens solution (16 fl.oz)

I only liked one particular brand of each of these items and therefore I considered it to be medically critical that I be allowed to carry what I needed in sufficient quantities for travel to my final destination and for two days in a hotel in case my checked baggage was lost).

I stopped doing this after a few months because I rather quickly became satiated with having broken the will of several of the DFW TSA supervisors with this foolproof mechanism of getting what I needed through the checkpoint. However, my medical needs also changed (actually, my dietary habits changed for the worse).

If you happen to have a good relationship with a physician and a pharmacist, you can pretty much take whatever you like through the checkpoint for your critical medical/nutritional needs. The TSA works on the principle that you will get tired of going to extraordinary lengths to get what you need through the checkpoint so if one starts using this methodology, it is critical that you stick with it and that you take every opportunity to rub it in their face to demonstrate that you are now in charge. I think my catch-phrase was "Who's the boss now, boss?" which they hated, and which I personally didn't like doing too much either - but it is a necessary element in breaking their will.