We've RVed and camped since the '60s and never make reservations. Reservation for us means traveling on a schedule of being some where at a certain time. We prefer a more laid back approach when we go on trips with the camper or without.
My work like revolved around being on a schedule such as a completion date or delivering my loads on a certain date at a specific location. That put lots of stress on me so I promised myself no more driving to meet a schedule...... if possible.
Were like a butterfly. Wife and I planned a trip to Yosemite and come back through NV southern CO/UT and northern NM to our home in OK.
We made it to Yosemite but instead went up through NV/UT on to Thermopolis WY and back down through central CO. Very long relaxing trip. I didn't have to be limited by time or a schedule.