The first thing is the power cables. As most of us know, laptop power supply cable is very hard to store due to the bulky AC adapter. Consequently, in case of its shape and weight, you must keep them separately. And if you want to store the power cables, firstly you should unplug the AC adapter, take my HP Compaq PPP012L AC adapter, just bend them into the same length, so that it'll be easy to save. You can make a twist tie to make it neat, so that you can tape it to the AC adapter. What's more, you should mark the cord that match with the laptop. Finally, just save them in your laptop bag.
Moreover, if you are going to travel with more than one laptop, you should make labels that which cable that match with which laptop, and you should put the labels on them. At last, you can easily find the cables that you need. You can also do this by storing the string in a Ziploc plastic bag before you mark them.
Another case is that some people may take other devices together with your laptop. If you are in this condition, you need to store multiple cables for printer, modem or mouse. When you store your power cables, you must coil with zip tie for every cable for the device and mark them.
Those are simple ways to keep cords neat for your laptop when you are out. To storing them well, you will get them easily when you want to use and have a wonderful travelling.