Yes, I agree -- Janine, you are awesome. I recently was in a bit of a self-struggle situation with all of the "package rates" hype going around. I do really think it's a great idea. However, we really need to know/have the experience on packaging our time.
What is working for me is to:
1) offer an hourly rate, which works out for those one-time projects. This doesn't always pertain to one-time projects though -- I have come across people who just prefer the hourly thing. (This doesn't always work out in the best interest for the client.)
2) offer blocks of time at varied reduced rates (off regular hourly rate). I have a 5-hour, 10-hour, and a 20+-hour package. I love those
I don't know about you, but I much prefer the blocked rate. This way I know what I am expecting and can budget my own life accordingly. I am looking to build my business on blocked times, which really results in only having a small client base. Right now I am on my way with that plan and only have a few more to go. Not that it's ever over ... it's just a time then to take a breather to regroup and figure out if it would be time to expand

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That is not to say that I don't appreciate impromptu projects now and again. I consider those awesome perks. But my bread and butter comes from existing clients who commit a blocked amount of time, hence a solid deposit into my banking account that I can count on.
Phew, and who said that money doesn't make the world go around?