Possibly the best piece of advice I've received in regards to preparing for jaw surgery was to buy Zip-N-Squeeze bags. As you can see from the above picture, these bags are resealable bags with a straw built into them. They were created by Susan Beaudette, a Registered Nurse, who had experienced many of the frustrations oral surgery patients had when it came to getting proper nutrients after oral surgery.
The reinforced straw is the key because oral surgery patients are likely to be on a liquid / blended only diet for a period of time immediately following surgery and they aren't allowed to suck liquids through a straw. The only viable options are to either use a large syringe (somewhat unwieldy in my opinion) or these wonderful Zip-N-Squeeze bags.
I've ordered enough zip-n-squeeze bags to last six weeks although I'm not sure if I'll actually need that many. I've also order a couple of their gel-pack "Cool Jaw" wraps as well as "The HEALING JAW" guidebook.