LONDON, UK - The grueling fortnight leading up to the Wimbledon final does not end in a weekend of relaxation for the eventual winner. Serena Williams was reminded of that once again after winning both the singles and doubles titles this year, having a flurry of post-tournament activities to attend to.

Immediately after her singles win on Saturday afternoon, Williams had to attend the mandatory press conference, where she was bombarded with questions about what it's like to play her sister, having 11 Grand Slam titles, and the famous "Are You Staring At My Titles" t-shirt, which she wore again to the press conference.

"I thought last night when I was getting my stuff together, 'If I win, I'll wear this 'cause I'll have 11 titles, and I wouldn't know if you guys were looking at my titles or my Gatorade bottle,'" Williams said. "And yes, there was another shirt if I didn't win - a plain Nike shirt."

After her doubles match later on Saturday, where she and Venus defeated Samantha Stosur and Rennae Stubbs to win their ninth Grand Slam doubles title, Serena dined in Wimbledon Village with her sister and the rest of "Team Serena". After saying goodbye to Venus, who flew home to Florida on Sunday morning, Serena attended the Wimbledon Ball, which was also attended by men's singles champion Roger Federer.

In addition to press conferences for both the singles and doubles wins, Williams also had a batch of interviews with worldwide media outlets. Her day was filled with meeting with the BBC, CNN, Sky News, France's Canal+, Channel 9 Australia and Wow Wow from Japan. And on Sunday she did a roundtable-style interview with a variety of UK newspapers, wire services and American writers.

Finally, Williams posed for the All-England Lawn Tennis Club official club photo, and was then interviewed for the Wimbledon official film, which is released a month after The Championships and features interviews with the eventual champion throughout the fortnight.

"I definitely feel good," Williams said after gaining her two new titles. "I love that I have that competitive drive, but I love that I can relax and be who I am when I'm not in competition."

Upon returning to the United States, Serena appeared on the Late Show with David Letterman. Watch a clip of her appearance here.

After her talk show appearence she remained busy. "Today was pretty busy," Williams said on her Twitter page. "I had a photo shoot. I'm still busy. I just want some sleep."