It seems like we could have a whole thread here about what to do, what not to do. I'll start with a couple:
MUST have a video
MUST be a personal plea
MUST have rewards spanning every possible contribution amount
MUST have rewards that appeal to a wide audience
I found that you really need to have your audience established first before going into the campaign. Basically none of my pledges come from people just browsing kickstarter.com. They all come from family/friends and my networks.
What are your strategies?