Why not apply labels/colors to the folders you want to locate often quickly? I think that already handles this well.
(You might need to turn on Preferences / Folder Tree / Appearance / Use configured file display colors for tree items for the labels to affect the tree as well as the file display, if it's not already on.)
While labels/colors could work to ID those folders you want to locate often, I don't think visually identifying folders you have recently visited are necessarily the same thing. There may be situations in which you're viewing seldom-used folders or moving files to/from seldom-used folders that would benefit from this visual identification.