Radical 己
3 strokes
This, and the characters 274 and 275a, are all very similar — use the character pictures for the basic building blocks at the beginning of the chapter to help you remember which is which.
自己 (94) zìjǐ self; one’s own

/ Teddy is fitting new special self -cleaning wheels to his jeep (and ends up in need of some cleaning, himself!).