What kind of surgery are you having? I had laparoscopic RYGB on 8/2 and so am only 6 days post-op. I did as dianeseattle suggested and am following the dieticians advice exactly. My surgeon said I was able to increase to 2 oz of protein shakes when I got home because I had no nausea and everything was awake and moving by the afternoon after my surgery (about 36 hours). I have found while the list said to buy protein drinks with at least 15g of protein per serving was advised, the more protein grams per shake, the better. This helps you get your daily quota while drinking them only 2 oz per hour. So do your math and factor in the portion size recommended and how that fits into your day. I have found that watered down juice is the tastiest but one bottle is all my carbs for the day so I have to water it down more or split it up between days because protein shakes have a few carbs in them too. Stock up on different flavors, when you drink the same flavor all morning, you will want to switch it up in the afternoon and evening. I got so sick of Strawberry, but it was delicious when I first tried it! Also if you don't have anyone to do the shopping for you/kids, fill up the fridge and cabinets for everyone before you go to the hospital, because you can't drive right away. Get organized. I find that the meds take a bit of organizing and I can only swallow one at a time bc of the small amount I drink at a time. The nurses gave me everything I needed as far as copies of my tracker/a whole sleeve of 2.5 oz measuring paper cups/even a dozen protein shakes. I had a whole bag of stuff they sent me home with and it was a blessing, so definitely take what they offer. I find shaker bottles are great for keeping a drink by my recliner during the day to pour my portion of whatever out of. A small pitcher would work also. Sorry this is getting long, it's just that I am doing all this right now. Hope it helps.