Why you should check your 'Sent Items' before your Inbox?

It is always a good idea to check your sent items first. You'll get an idea about where you stopped yesterday, whom you mailed and then you can easily follow-up on the action items.

The best way to do this is to go in this order,

Sent Items - Inbox - Sent Items.

This way you can see if those whom you mailed have replied or not and then request for an update to remind them of the task. This way you are helping them too, because in their busy schedule, they might keep your task for later and might forget about it.

So remember the short form for the sequence, SIS, which means "Sent Items - Inbox - Sent Items".