I’ve never done a good job with first aid supplies. However, I found the USNERDOC on YouTube and his video series has really helped me get started.
Level 1 - Parts 1 &2:
Level 2 - Parts 1 & 2:
Be advised, the USNERDOC has started selling pre-made kits online. His kits may or may not be a good deal – I honestly don’t know. I’ve bought everything I have individually from local stores – mostly from Target, and also Wal-Mart, CVS, and Walgreen’s. First aid suppliers are expensive but I’ve had good luck finding sales, coupons, and rebates.