It's great to have repeat customers--people who depend on you to have the items they need and want. These folks can make eBay trading a pleasant and rewarding pastime. Then there is that one buyer who wins one of your auctions, then another, and another until he or she has amassed over twenty wins and has not paid yet but continues bidding. It can be a bother to keep sending invoices that get ignored because the buyer is waiting for you to post another possible gem he/she will likely bid on in the final minutes of the auction while holding up a mass purchase. This cherry-picking can be aggravating and agonizing as days drag into weeks. Then 30 days have elapsed and you are not able to combine all the items on the invoice to document the purchase. To avoid such hassles and reign-in the perpetual bidder, I recommend the following steps:

1. Specify in shipping details that you will ship a specific number of items together. Up to ten may seem fair but it's your option.
2. State that payment is expected within a finite time. Within 5 business days, for example.
3. Block buyers who have won a certain number of your auctions within 10 days without paying. A range of options is offered.
4. Limit the number of items of a particular theme or category that you list for auctions. You may expand your customer base by diversifying your listings.
5. State in the listings that items not paid for within a specific time period will be offered to a Second Chance Bidder.
6. Stop posting items for auction until the buyer requests a total and resume sales once payment clears.
7. Does the buyer leave feedback? Getting and receiving feedback is half the reward of Ebay trading. It enhances your profile and of those you deal with. Someone too busy to wrap up a sale in a timely fashion is likely too busy to leave kind feedback--whether one, or one hundred items sold in an auction.