I did a *Lite by myself and had a great time. I went to a couple of places by myself, went to visit people in others. It was awesome.
I definitely have had some people react strangely to my desire to sometimes travel by myself. I cannot fathom why not having someone at a particular moment to be a traveling companion would prevent you from getting out and seeing the world. Life is too short!
Here was my route, just for the record: kiv-vie-evn-vie-muc-bkk-nrt-sfo-san-ord-clt-iad-lhr-vie-kiv