I hear you, and would usually agree. 9 out of 10 times, the difference in formality between jeans & tie is too great to combine them in a congruent way. I'd usually go for a knit tie, which I think works just fine. They're as informal as ties go.Yesterday I went with a pretty casual wool tie instead. Did it work? Well, I wanted to try it at least, and I kinda liked it.