> Having said that, I wish someone had told me... Another rule of thumb I always try to emphasize for beginners: Don't add lifetime parameters to your structs

> Having said that, I wish someone had told me... Another rule of thumb I always try to emphasize for beginners: Don't add lifetime parameters to your structs. Sometimes the compiler will suggest that you do it, but ignore those suggestions. Concretely, always make your structs hold String or Vec instead of slices. In 3-6 months you can ignore this rule.