What has really helped you?

To all my pastor friends out there (or soon to be pastors or anyone else with ideas)….

What has really helped you in your ministry?  I am talking about “stuff” (ie books, home communion kits, albs or other worship stuff ect)

As someone going into a first call situation what will I need to have a successful first six months to a year?  Is there something that you wish you had when you started? Or was there something that really helped you that you are glad that you had?  Any and all advice is welcome.

Thanks!