All of my plants are in 2L Coke bottles right from clone, and they go straight into the flowering tent. My White Widows get to about 36" tall after they are done stretch, and even then, I only need to water them every two days (sometimes I'm too lazy and wait to day 3).
The clones that are less than two weeks after putting into the 2L pots only need water once every 3-4 days, then they go into the every-two-days routine with the larger ones.
Practice and experience will quickly allow you to dictate when your pots are light enough (ie. dry enough), but definitely more than once per day is way too much.
-spek