Make Way for the User
Build solid tools with a simple purpose.
Narrow down the use-model so that what you want out of users is as straightforward as possible. If you know what you want
Intuitive tools don’t need manuals.
Hammers don't have manuals because their purpose is so simple that anyone can understand it. .
Get in as quickly as possible.
Every tangible second of user's time is valuable and needs to be accounted for against projected intentions. Don't waste your users' time, don't stagger their experience with interstitials. They will skip them and won't thank you for it.