'It's a blessing': Chez Doris adds new building with $1-million donation

After a life spent battling addictions and homelessness, Nora Mehringer was living in a Tupper St. apartment in the early 2000s when bedbugs infiltrated the entire building.
The bugs had gotten into everything — even her purse, she says — and she had no choice but to leave her place behind.
She packed what she could into two bags and knew where to go: Chez Doris, a day shelter for women in western downtown.
The shelter’s staff let her shower, replaced her clothes, and made