Place the highest bid I'm willing to make 5 seconds before the auction ends so there's not enough time for someone elses auto bid to take effect.
Yes, but there are autobids. The trick is to pick an 'odd' amount. People generally bid rounded amounts ie. $10.50 or $45.00. If autobids are in $5 increments, well you bid $5.10 more so it overrides the highest autobid. You do a test to see if autobids are there about 1min before the end of the auction and then you do you final guess about 10secs before the end. It is hard to explain but I was the MASTER of it! I never lost an auction. You need to guess what people will bid and bid slightly above it.
As for listing, here are a few rules to stick to:
Selling prices are highest on a Sunday night so you need to list so your auction ends on a Sunday night. So 10 day auction, list it on a Thursday evening, for a 7 day auction, list on a Sunday evening. That way you dont pay extra to choose a listing time. The longer your auction, the better the prices are generally.
It is all in your title. People seach by keywords so you need a keyword in your title. Brandnames work brilliantly. Include as much description as you can fit in that title.
Good photo of course.
Hope that helps.