I have questions about how they work. I've had this issue in both Bitcoin and Litecoin Qt clients.
I joined a p2p pool that dumped my shares directly to my wallet. I don't have a lot of horsepower, so after a few hours I had 50 transactions totaling about 1LTC. I wanted to send them to BTC-e to add to my funds there. I select it all, set the tx fee to 0.01, and hit go. It comes back and tells me I don't have enough funds because of the 0.8 LTC tx fee. I lower my optional tx fee, until i've eventually removed it entirely. It's still demanding 80% of my transaction just to send it.
What part of the system am I missing? Is there a baseline tx fee? Doesn't this make p2p kinda worthless for LTC, since it doesn't aggregate your earnings before sending them?