Do you know what to do if you are out on a ride and you get a big cut in your tire? If you don't, then this may help you out. If you are out on a ride and you get a cut in your tire that is big enough for the tube to poke out then there are a couple of things you can do to get back home.
First thing you need to do is take off the tire and find something to put in between the new tube and the hole in the tire. You need something that will not tear under the pressure of the tube. You can use gu or energy bar wrappers, but the best thing I have found is a dollar bill. Take your tire boot and fold it so it is at least an inch longer than the hole you are covering. Put it in the tire and then install the tire the same as you normally would. When you air it back up, make sure that it is holding the tube so you don't waste your good tube. As long as it looks good, you can put the wheel back on your bike and ride home. You will probably want to buy a new tire when you get home.
So always remember to bring something in your flat kit that can boot your tire if this happens to you.