A few things I've found out from doing some of the achievements: 1. For the gather seaweed / pick palm leaves task, you can pick up one, then drop it, pick it up again, etc. 5 times rather than getting 5 different seaweed/palm leaves and it still counts : 2. For the mine a red topaz task, you don't have to do so in shilo village. If you get a gem rock during the cleanup mini-game and there happens to be a red topaz in it, that works too. 3. The oomlie wrap can be cooked on a fire (your guide specifies a range). 4. The jungle gloves not only make the stores sell you stuff cheaper, but the stores will also buy your stuff for more money (though the price will eventually drop down to the normal, rock-bottom level if the store has lots of something in stock) If I think of anything else to add, I'll do so.