Has anyone used this to buy bonds? I was thinking about buying some I Bonds. There is a limit of $10,000.00 per person and right now they are paying close to 7% through next April when they will adjust based on the inflation rate according to an article on CNBC. I imagine the rate will drop in April if inflation subsides but the rate will still probably be better than what I can get in cash. Was curious if anyone used Treasury Direct before and how they liked it.