Not looking for trades right now.
But, I have 126 pages of inventory and was going to go through them and remove stuff I was never going to use. The site doesn't seem to have an easy way to remove stuff except maybe to set up a dummy account, create a trade, and accept the trade to remove it from my inventory. Anybody have an easier way than that, or searching every single card?

You could sort them by cost/name, export, open the CSV file, delete what you don't want. Then just use the delete everything option and reimport using the "from a CSV file" option.