When should 吧 be used? I understand that it is used at the end of a sentence to indicate suggestion, but I want to know what kinds of everyday situations warrant its use. I'd appreciate two or three examples. Also, does it have any other meanings?
I got this from an online dictionary:

吧 &lt;助&gt;
① 用在句末，表示恳求、提议、请求、命令等语气 [(used at the end of a sentence) indicating entreaty， suggestion， command， etc.]。如:派六个人不够吧，我的意见派十个人 / 你说给大家听听吧!
② 用在句末，表示同意、认可的语气 [indicating agreement or acknowledgment]。如:好吧，我一定去 / 就这样执行吧
③ 用在句末，表示疑问语气，带有揣度的意味 [indicating doubt]。如:他现在赞同了吧? / 你弄通了吧?
④ 用在句末，表示估量、推测语气 [indicating uncertainty]。如:他自己总该知道吧 / 老王会到这边来吧
⑤ 用在句中，表示停顿，带假设语气，并带有列举性质 [indicating a pause]。如:说吧，不好；不说吧，也不好