Barney went ahead and put a ring on it - and Robin couldn't wait to show off her new bling this week on How I Met Your Mother.

As "Ring Up" unfolded, Robin's left hand was all sparkles, yet she also began seeing the inside of her wallet more than usual as her newly engaged status put an end to mornings of free coffee and bagels. 

Robin's musical number was just great and very reminiscent of those we have seen from her fiance in the past. She also took the reins when it came time to mock Ted for his new accessory.

Barney still delivered a number of memorable How I Met your Mother quotes, particularly during the scenes where he struggled with his one night stand withdrawal. I also loved the repeated attempts by Ted to get Barney to admit to sleeping with his mom, along with Barney's constant winks.

Ashley Benson was a great choice to play Ted's new relationship. Initially I was a little skeptical at the whole concept, thinking it rang too much of Josh Radnor's movie Liberal Arts, but I was glad I held my groan. 

The cuff worked its magic for Marshall, despite giving him a nasty reaction. A few blisters and sores were a small price to pay, though, for the mood it put Lily in. Marshall's swollen hand was also one of the funnier bits of physical comedy I've seen this season. 

Ted didn't get any closer to meeting the mother this week, but it was fun to see him out and about trying to relate to a much younger woman. I think my favorite moment, however, was when Marshall asked Robin how she was going to ever get another drink and she simply turned to Barney and asked him to grab her a scotch. Problem solved. 

What did you think of the episode?