https://developer.salesforce.com/en/events/webinars/top-5-salesforce-hacks
http://www.ringlead.com/5-admin-tricks-you-didnt-know-about/ — great stuff!!!
https://twitter.com/MikeGerholdt/status/492396380418080768 — great webinar!!!
Left VoiceMail Button: Lead Object
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/00T/e?followup=1&title=Call&who_id={!Lead.Id}&retURL=%2F{!Lead.Id}&tsk5=Call&tsk6=Left+a+Voicemail+for+{!Lead.Name}&tsk5_fu=FollowUP+VM+with+{!Lead.Name}&tsk4_fu={!TODAY()+2}