Remove the vote limit
There's a limit (is it 30 votes or something) on the number of votes one can place within a given period. The problem with this is a lot of voting is going to casual, done in passing - read a random question, see a random good answer and upmod it because it's a good answer.
If I can't upmod something because I have run out of votes, then I'm not going to ever get round to upmodding it - I'm not going to remember the question and come back to it just to upmod someone, so there's potential for a lot of votes to go missing, which detracts from a large part of what the site's about, surely.
"Voting has closed" Why?
It doesn't need to be upped by much, but 30 is pretty low...
Isaac Waller commented
I run into this limit every day - please reconsider.