LO is almost 2.5 and I'm sick of buying diapers

How did you accomplish potty training if LO was in school full time? I'm thinking about reaching out to her teacher to set up a game plan together. I'm not interested in doing the 3 day method, but if it is the best option I can reconsider.

Her current room ends at age 3 ish and she can't graduate into the next one until she is both age 3 and potty trained.