I've had some really cheap shoes that were extremely comfortable. At Wally-World they sell TreadSafe shoes; they're sold mainly to cooks and other people who need non-slip soles. They don't last very long but they're extremely comfy. A pair of Redwing's will last me a couple years in the kitchen (and by then they're blown up) whereas the TS will only last maybe 6 months, tops.
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman