Trouble with time management/charting what I've done-any advice?

Asking anyone for advice. I have 3 weeks of nursing school left and I am still having trouble with time management. Partly because I'm never in the same place, care or specialty more than once. I am exceeding at hands on care, knowing how to trouble shoot machines, catching changes in patient condition etc.. however my charting skills suck! I feel I do so much more than I can remember to write, especially when I get called away or get a new admit. I think it might help if I create some sort of standard routine. I don't want to waste time re-inventing the wheel or double charting. So do any of you old-school or new-school nurses have any suggestions on how to get focused. Preemptive Thanks,

rn4sure