Barbara, start a list here by utilizing the database and creating an inventory list. You can add notes to it, like where and when you got the plant, and who you promised trades to.
Just find the plant you own in the database, and click on the blue button on the left side to add it to your inventory. You can even create separate categories for various types of plants like I have. You can create one just called 'Trades' and you can even set it to 'Private' so only you can view it if you want.
