I noticed people sluggishly using the arrow keys to fix a typo in a terminal command, wasting seconds that add up over time. Here are a couple of keyboard shortcuts I use that increased the quality of life when using the terminal, and allows for speedier in-line navigation.

Beginning of line: ⌘← Send Hex Code 0x01
End of line: ⌘→ Send Hex Code 0x05
Beginning of word: ⌥← Send Escape Sequence b
End of word: ⌥→ Send Escape Sequence f
Delete line: ⌘←Delete Send Hex Code 0x15
Delete word: ⌥←Delete Send Hex Code 0x17
One page up: ⇧⌘↑ Scroll One Page Up  
One page down: ⇧⌘↓ Scroll One Page Down