Exactly! I do it in front of my computer where I can research candidates and issues. If I went to a polling station, I wouldn't have the time to do that research. I tend to spend 30 min or more on my ballot, even though I'm pretty sure I can accurately predict the results of the election before even looking at the ballot (in my area, the R will win; if it's not a partisan office, the incumbent will win; if it's a yes/no, it'll be yes, unless it's something I actually want, in which case no).