I bought 6 tins of the Baking Buddy pumpkin puree at Waitrose on Friday @£1.65/tin. WAY cheaper than Amazon. I've made my own many times, but as long as I can find the tinned variety, I won't bother.
I'm a "leftie" who grew up in a family of right-handers, so was taught to use a knife with my right hand. I'm nearly 72, and after all these years, I still cut myself frequently. I cook from scratch every day, and always have, but knives and I do NOT get along. Carving up a pumpkin is not high on my to-do list. :-)