1. Do not remember electronic wallet password
2. Do not back up your wallet
3. Do not research new services
4. Buy and sell based on feelings
5. Leave your money in the electronic money floor
so far reaching this rank,only one of thos that i have made,not remembering my ectronic wallet pasword and i gues this is certain specially for the newbies or those just starting their career in this community.but other than that i made no mistakes at all