Tips for being a successful weed

Try to disguise yourself as a desirable plant. For example, here is common mallow next to mint and lemon balm. In these pictures it maybe easy to tell them apart, but I'm here to tell you, at this time of year, it all looks alike.

Alternately, try growing as close as possible to the desirable plant. If possible, try growing up in between the branches of said plant. This will make the gardener so nervous about uprooting her beloved plant that you'll escape being yanked.

For the first year, anyway.