TIP: Export More than 1000 Issues to Excel from Issue Navigator in JIRA Cloud - Atlassian Documentation

JIRA is a well known issue tracker (now it's more than this but...) and sometimes you need to export some issue list to Excel in order to handle it more easily (filter, count, graph, etc.).
Unfortunately only the first 1000 issues will get into the resulting downloaded Excel file.
With this trick, several exports can be (manually) appended to the initial Excel:

Export More than 1000 Issues to Excel from Issue Navigator in JIRA Cloud - Atlassian Documentation

Tip Summary: Append "&pager/start=1000" (or 2000, 3000, etc.) to the Export to XLS (all fields) URL.
Control click on the export option to see the URL being opened (and to be able to edit it). Typically it will open in a new Tab in your browser with the URL to be edited.

Delay mail delivery

Useful features for mail users (are you a mail user? You should be working instead of sending e-mails):

Gmail started recently to allow cancelling an email after sending it. Look for this setting under the gmail options.

Microsoft Exhange users can also do it (on every client platform). I was able to configure my Samsung Galaxy Notes 2 (with the default Android installation and mail client, working with my Corporate e-mail server) to delay mail delivery for a few seconds.

This is enough for you to review the last sentences of the email or remember that the attachment is missing, or that an email recipient is missing (etc.).

In fact they will not cancel email sending, they will just defer for a few seconds the delivery of the email to your server. Simple but effective.

Both work by displaying a message like "press this to cancel send" that auto-dismisses itself after the defined time interval elapses.

You'll never send incomplete emails again in your life.