What's been frustrating for me, historically, is that the dropdown list is different for different parts of Google. For example, compare it at google.com and at

What's been frustrating for me, historically, is that the dropdown list is different for different parts of Google. For example, compare it at google.com and at gmail.com. I think they're trying to improve it -- looks like in Gmail it lists services you use first, like Reader and YouTube, but not Voice? -- but it's certainly not consistent. Plus with each re-organization you have to re-learn all over again.