ClipAssist is perfect if you don't want to make your customers feel that they're reading a standard letter--but there are snippets of text that you have to type regularly: your address, your VAT number, directions to your premises, answers to those frequently-asked questions....
Do you type them every time? Do you search for a document or old email and copy and paste from there? I tried clipboard history applications and multi-clip applications but found that these didn't do exactly what I wanted.
ClipAssist will sit in the background and give you quick access to those clips, in unstyled text, so that you can paste them anywhere with the minimum fuss.
And with version 4, ClipAssist provides sharing features. Copy on one Mac, paste on another. Just install the app on each Mac, and switch on "send" and/or "receive" as appropriate. That's it!