I found a nice site while stumbling today. HitMeLater allows you to snooze any email you want. If you are busy with a project or are in a hurry to go somewhere, and cant follow up on your email, then simply snooze it for later! To use this service, you can email any message you want to “1@hitmelater.com”. This will send your email back to you in 1 hour. You can replace the 1 with any other number, and you will receive your email that many hours later on. You can also choose to receive the email on a certain weekday. For that, simply forward your email to “Tuesday@hitmelater.com”, and replace tuesday with your desired day.

I can see only limited use of this service, but the idea is pretty neat. The simplicity and ease of using this service can benefit many people looking for such a service.