yeah, that's different, it's more work. i drew out a long debate in a class once about that, and the profs were very convincing that charing different rates weren't the way to go, because there's so much justification to do, like just now.

since i'm freelancing, i have a notebook dedicated to work I do, where i keep notes, such as something i want ot build, or how long it took. when meeting with someone, i'll explain what i want to do and what's involved and give an estimate for everything (for time and money) and i record when i start work and when i stop work, total them up and compare them with the client.

since i'm in school, i can't just say i'll do client work between 9-5 but, i might take that approach when i'm finnished - 9-5 for client work, teh rest for personal stuff.