There is another option if you use Microsoft Word, and allow it to "autocorrect" as you type. If you open "Tools – Autocorrect Options" and click the "Autocorrect" Tab, you should see a couple of boxes where you can enter a "misspelling" on the left, and the "correct spelling" on the right. If you put some unlikely "code" in the left, and paste the character you want on the right, whenever you type the "code" Word will replace it with the "character." Put something like E# on the left and ₤ on the right and whenever you type E# it will be "corrected" to ₤ - in Word.

The description here is from my Word 2002, but this method works at least since Word95, although the "clicks" may vary a bit.

"Legal typists" should always enter "trail" on the left and "trial" on the right. Then if you have "spell check as you type" turned on, when it corrects your typo to "trail" autocorrect will change it back to "trial" and people won't call your boss a "cowboy lawyer" (always going to trail). Odd capitalizations can also be handled here. In the default setup, it's almost impossible to type "BAe" without it being "corrected" to Bae, so you put the unwanted correction, "Bae" in the left box and what you want, "BAe" in the right. You type BAe, but spell/grammar check changes it to Bae, and autoreplace puts it back to BAe.

Many people turn off the "correct as you type" function, but it's probably helpful once you're aware of how it works. If it makes an unwanted substitution, hitting Ctl-Z immediately will cancel the change and put it back like what you typed. In recent versions of Word, if you cancel something the first time it tries to change it, it may "learn" that you don't want that replacement, and won't do it again for the remainder of that document. Older versions are "less smart."

John