Rachel Bilson and her mom, Janice, run errands near her home in Los Angeles on Tuesday.

RB, 26, was casually dressed in baggy flared jeans and a purple shirt for a trip to a CVS pharmacy and an optician.

Rachel’s been running a taxi for service for BFF Hayden Christensen! Check out her picking up HC.

Hayden Christensen, in his favorite BAPE cap, arrives at LAX airport in Los Angeles on Thursday and waits curbside for BFF Rachel Bilson.

Rachel, accompanied by her pup Thurmen Murmen, picked Hayden up in her Lexus hybrid SUV. The former O.C. starlet wore her favorite Ray-Ban sunglasses.

10+ pictures inside of Hayden Christensen getting a Rachel Bilson pick-me-up… More Here! »

Rachel Bilson and her mother Janice, a sex therapist, go shopping in Pasadena on Wednesday, a fine sunny day in May.

They pair stopped in at Sur La Table and Urban Outfitters during their girls day out.

RB, 26, was most recently in New York City, shooting the anthology film, New York, I Love You.

Earlier in the week, Rachel was out shopping in Los Angeles with her little sister Hattie.

Rachel Bilson spends all day shopping with her sister Hattie in Los Angeles on Saturday.

The 26-year-old former O.C. star walked down Third Street and hit up high-end boutiques Milk and Satine.

Rachel sported her favorite Coach Siennah sandals in yellow.

10+ pictures inside of Rachel Bilson getting milked… More Here! »

Rachel Bilson attends the debut of Rogan for Target at Barneys in Beverly Hills on Thursday.

The 26-year-old former O.C. star wore a Saks blazer and Martin Margiela’s Open Toe Ankle Boots.

Rogan for Target is a new collection of organic clothing. Up until last year Rogan Gregory was the creative force of Edun, a line he started with Bono.

Other celebrities that came to support the debut were Desperate Housewives‘ Marcia Cross and Felicity Huffman, as well as Sophia Bush, Maggie Grace, and Whitney Port.

More Here! »

Rachel Bilson sports a hair-braided headband as she grabs a late lunch at Greenblatt’s Deli on Sunset Boulevard in Hollywood on Monday.

On her way out, a photographer asked to take a picture with her. And she agreed! How cute.

Yellow “Babe” Small Shopping Bag by Dior. More Here! »

I can’t decide - chocolates or flowers?

Rachel Bilson has a dilemma as she goes shopping for Mother’s Day at Glendale Galleria in Calif. on Saturday.

The 26-year-old actress also stopped for some sweet treats for herself and her dog Thurmen Murmen!

RB dropped off Thurmen for doggie care on Thursday.

More pictures of Rachel Bilson’s Mother’s Day dilemma inside… More Here! »

Rachel Bilson and a pal take their dogs, including Thurmen Murmen, for a day of pampering at K9 Loft doggie daycare in Los Angeles on Thursday afternoon..

The 26-year-old former O.C. actress wore a pair of green Chanel shades, tie-dyed scarf by Park Vogel, and a vintage Heart shirt (”World Tour Eight”). Rachel also toted around a Yellow “Babe” Small Shopping Bag by Dior.

10+ pictures inside of Rachel Bilson at doggie daycare… More Here! »