down the sdjr

Yeah, it’s a pity there isn’t a context checker as well as a spell checker. That might help pick up using a correctly-spelled word that isn’t actually the one you want, like my “singed” instead of “signed” above.  
I blame the English language for having a spelling system that doesn’t correspond very well to the sounds of the language. 

Yes. My particular bête noir is 'form' instead of 'from'.

The English Language will get around to it eventually, consider Chaucers "Canterbury Tales" and anything from Shakespeare.

Mind you, I think the prologue from the "tales" is pretty understandable, even now... 

Whan that Aprill, with his shoures soote
The droghte of March hath perced to the roote
And bathed every veyne in swich licour,
Of which vertu engendred is the flour;
Whan Zephirus eek with his sweete breeth
Inspired hath in every holt and heeth
The tendre croppes, and the yonge sonne
Hath in the Ram his halfe cours yronne,
And smale foweles maken melodye,
That slepen al the nyght with open eye
(So priketh hem Nature in hir corages);
Thanne longen folk to goon on pilgrimages
And palmeres for to seken straunge strondes
To ferne halwes, kowthe in sondry londes;
And specially from every shires ende
Of Engelond, to Caunterbury they wende,
The hooly blisful martir for to seke
That hem hath holpen, whan that they were seeke.