MoviPrep
"I'm 50 ; never had a colonoscopy.  Yes, not smart.  But needed one now.  MoviPrep Spit-dose was surprisingly expensive.  Heard lots of negatives re: the prep procedure so, I researched and thanks to this website, found some good suggestions to get through the 'gross time'.  Mixed it with cool water directly from the faucet and left it on the counter while I drank the first obligatory 4 8-oz glasses-15min apart within 1-hr. Prep had salty/citrus taste--not good. I used 2 straws, took big gulps and after each gulp, drank a mouthful of clear liq (Snapple) to get rid of taste.  Then drank 16 oz. clear liq.  Prep worked quickly-within 2 hrs.  Woke up 4 a.m. next day; got through 3 glasses of Prep; couldn't drink more.  But all was clear for test."