I don't really wear deodorant since starting estrogen. Laser hair removal + T removal = I'm actually pretty rosy most days.
Showering, however, yes. I usually went 3 days between showers because of my long hair, it was obnoxious to deal with and if I had a sweaty day I'd just kind of sponge off on the key areas. Now I've started just pulling my hair up all the way and showering every day or two and enjoying it.
To be honest, though, I think it was mostly my hair... as strange as it is, once the anxiety went away by starting HRT, I really don't like my long hair. I'm 23 and have had long hair for about 17 of those years, so... I think I'm just sick to death of it. For many years, it was all I could hold onto for femininity, and now, I feel I have much more.