I had watched a video of a women who travels every day of the year almost and all she uses is a carry on suitcase and uses ebags. Well I was so intrigued that I had to buy some of these bags. You can find them at ebags.com.
How I use them is by packing like minded items together in one bag.
So in the attached video link I am packing all my cool weather clothes. But I also pack together items like underwear/socks/bras, workout clothes, and even the clothes I will need in Fort Lauderdale for the two night pre cruise. This allows me to just pull out the ebag and use that instead of searching throughout my entire bag for the items I need.
Check it out
You tube video on ebag packing