"Tomorrow" is my least favorite word when planning to get down to work. It's a great word - and unfortunately it is used every single day. I believe it has to be second in popularity to ... "later".
Just last week - I ran into a young National Champion at the Marshall Chess Club playing in the "4 Rated Games" event. His claim that he's been working hard on his game all summer impressed me. Assuming he's studying properly, I'm willing to predict that he will surpass 2200, if not in rating then certainly in strength, just weeks into the school year. Kudos to him, and congratulations on a job well done as/if it happens. It isn't really hard to gain 200 points in three months unless you get either distracted or cocky and over confident. Most students don't know how to study for themselves and hack away at it, either by memorizing or just playing as many tournaments as they can.
About a month from now, 31 days give or take, students will all be back in school. Homework and new responsibilities will overwhelm many as they adjust to a higher grade and higher expectations. Two weeks of Chess Camp at the end of August are part of a jump start and a casting off of summer rust that is planned by many parents and perhaps the least anyone can do to get the minds back on the boards.
Of course, I don't mean to interrupt any particular mastery of procrastination by nudging about this now - you can always sign up later, maybe even tomorrow. But be careful - tomorrow never actually comes :-(