This tool can help you clean up your useless bookmarks. It selects one bookmark from your bookmark bar every X times you open new tab(x is your setting) and show a tip to remind you this bookmark. If you find this bookmark has been out-of-date, you can remove it from your bookmark bar.
温故知新 是一个可以帮助你重温或者整理书签的 Chrome 浏览器插件。每次当你新建立一个标签页面的时候，插件就会从你的书签栏选择一个书签并提示你。你可以选择浏览或者删除。