ptbo..."Best way"...could be relative to the location..
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If you grow in your backyard, cutting 'n hanging the entire plant may be an option, if you grow out in the woods where transporting a 6 foot plant over your shoulder might create suspision, it may not be an option.
"I"..sit down right in the patch and scissor trim all of the fan leaves, anything without trichomes stays in the woods. I then cut the buds/branches to length to fit inside a box that fits snuggly in a backpack. (Shoe or workboot box is perfect) Once safely packed away in the backpack, I'll roll a li'l "finger hash" off into a bowl, sit in the shade and smoke it before heading out with the backpack...