I had to take a trip a couple of weeks ago. I have been using nothing but a strait since May, but for some reason the TSA frowns on straits on an airplane. So I took a disposable. I took a brush and cream, thought "It's only 2 days. How bad can it be?" BAD. Very very bad. Two shaves, 2 days later, I had so much razor burn on my neck I could barely button my collar. No way I could use a strait, my neck would be ground meat. I used my trusty DE. Ten days later, I finally am able to use my strait again.