It's pretty easy using Emacs. Just type C-q C-_ or C-q C-^, alternatively C-x 8 RET [037|036] RET. Emacs makes it really easy to insert arbitrary unicode as we

It's pretty easy using Emacs. Just type C-q C-_ or C-q C-^, alternatively C-x 8 RET [037|036] RET. Emacs makes it really easy to insert arbitrary unicode as well, even if you don't remember the code point. C-x 8 RET s n o w m a n RET will insert a ☃ (snowman).