Use a 5x8 piece of paper or card for ea pt. Smaller is ok--whatever size will allow you to fit any info you need. some people use a notebook, allows them to keep track of all their assignments for as long as they need to for evals, etc.
Back side is history and demographics. On mine for NICU (you'll have to figure out what info you need), I had date of birth, gest age, birth weight, resuscitation in DR, Apgars, initial problem(s); also had Mom's gravida, para, route of delivery, complications; social info, esp drugs. Language spoken if not English.
Front side is current staus: today's date, current wt, current gestational age, resp support needed, IV's, labs pending, feedings, projected d/c (for teaching purposes).
On the long side of the front, draw a line vertically about the middle on the card; on one side of this card, make horizontal lines so that you have 12 spaces for a 12 hours shift, 8 spaces for an 8 hour shift. In the upper left corner of each box, write the clock hour for that time of day. Go through any meds or treatments pt needs and write them in the approp space. For me, that would include when feedings were due, also. As things were done, they were checked off. You can make little notations in the correct spot, too, if you can't get to the chart right away, and you're worried about forgeting.
Once you've gottent a system that works for YOU, it will provide a structure that will make it a bit harder to for get stuff.