One of the Twitter tools I have started using is called Buffer. It allows you to schedule tweets. The free version gives you a limit of scheduling 10 tweets which is good enough for me. I tend to find stories I would like to share but do not want to send them all out at once…I just put them in Buffer and they can be spread out a little.
There is also a Buffer Bookmarklet so you can buffer a page right from the page.
They have a paid version for $10 a month and it allows you to have more connected accounts and more tweet times. At some point, that may be handy.
So, if you are looking for an easy to use way to schedule a few tweets…go ahead and check it out.