Because of Vim's modes, there is not a lot of holding down the Ctrl key while pressing another key. However ,in insert (or replace) mode, Ctrl+R will let you paste a register, and Ctrl+V lets you insert any character literally. Ctrl+W deletes a word, and Ctrl+H backspaces a letter.
What's the term for these key sequences?
Are there more of them?
Ctrl
.