Explained:
Segundo, me lavo las manos y la cara con el jabón.
A translation of this is,
Second, I wash my face and face with the soap.
This is a hygiene item but not used three times a week, more like everyday.
Tercer paso, me seco las manos y la cara con la toalla.
A translation of this is,
Third step, I dry my hands and face with the towel.
This is NOT hygiene item and not used not three times a week, more like everyday as well.
(Examples of other things it's well known he doesn't brush his teeth only 3 times a week which leaves us too..)
Answer:
Los lunes, miércoles y sábados, me lavo el pelo.
A translation of this is,
On Monday, Wednesdays and Saturdays, I wash my hair.
The hygiene item and used three times a week; lunes, miércoles y sábados; Monday, Wednesdays and Saturdays.
( BTW in the spanish language week days are lowercase)
To wash hair you need the hygiene item of...
Finale answer:
Shampoo and conditioner (OR Champú y acondicionador)
Happy to Help! :)