#camera techniques

I've been getting into astrophotography lately and I was wondering if I'm the only one who sometimes skips using a tripod I know it's pretty essential for getting clear shots, but sometimes I'm just out and about with my camera and I see a great shot and I don't have my tripod with me. So I just Try to make do without it. Has anyone else ever done this? Do you find that it affects the quality of your photos too much? I've been experimentation with different techniques to try and get decent shots without a tripod, like using a faster shutter speed or a higher iso. But I'd love to hear from you guys and see what you think.