Just started my fundamentals class, and all is well so far! However, I am realizing that I have some needs, so tell me what products you've had good experiences with.1) ROLLING BACKPACK. I have one from High Sierra, but it is just a little too small. Anyone found an enormous and sturdy bag that they love?2) Drug guide. The recommended one (Davis's, I believe) is just not my favorite. Wanted to see what else was out there.3) Care plan book.Thanks in advance!