Curious about the pick up of pathtags, coins and bugs. I know that when I find a cache, I can move bugs and coins and trade for tags. I think that its okay to stop by a cache I have found previously and drop off a bug or coin to move it along. But what about going back to a cache I have already found, maybe months before, and trading for a tag or picking up a coin or tag to move it? Would appreciate some input. TY