Thule

Though this might seem a bit expensive, after having used it for a couple road trips I'd say with confidence it's top quality and more importantly a very well designed product. Even if "travel" just means a 15 minute trip from garage to a ride start, this makes it easy to organize my gear and helps avoid those D'oh! moments where you discover you're missing something. You get a gazillion padded multipurpose partitions (bottles, socks, glasses, etc.) and a few purpose-specific areas (helmet, shoes, grungy kit). It's large enough to support multi-day trips, stash small/basic tools, nutrition.

One tip if flying--depending on the airline, I wouldn't spend the $ to check this as a separate bag, but you also might not want to use it as one of your 2 carry-ons. I use a softshell bike case and am able to fit this in that along with the bike, just barely coming in under the weight limit for a regular checked bag for bike plus this kit/bag.

I bought this Thule rack for carrying out tandem bike. Used it for the first time driving from northern CA to Vancouver WA for the start of an 8-day Columbia River bike tour. While other people were struggling to dismount tandems from cars in front of the downtown hotel, we got our bike off in just a few minutes. The only downside is that the height of the rack puts the captain's handlebars so high that the bike can't be mounted into the truckbed in the garage w/o the handlebars hitting the garage door and/or door frame.

However, since buying the Thule rack I found an after-market bed rail rail that can be easily bolted into the truck bed frame, and installed 2 Rocky Mount fork clamps. That lowered the height of the bike handlebars by about 5 inches, so there is now plenty of clearance to leave the garage. The Thule rack was great, but I found a better solution. I'll be willing to resell the Thule rack for a good price to anyone who wants a good, rugged and well engineered rack.

This is the second best piece of cycling related gear I've ever bought, only just losing out to my Garmin Varia. Previously I was just using a sports holdall to store all my biking stuff in and it degenerated into a an absolute nightmare of lost stuff. This bag makes it so easy to know where everything is and has plenty of room for cold weather gear, snacks, and maintenance stuff in addition to all the regular gear such as helmet etc. I'm a big fan of the lined pockets for dirty gear and shoes which help eliminate the smells which we can easily permeate from most athletic storage bags