You have received some good advice so far. I have been in the business now for many years.
What works for me is a combination of Supra lockbox's (both new and used from another agent), contractor lockbox's.
Make sure you are able to re-program the used (previously enjoyed) lockbox's with your information.
After a listing of your has gone to pending staus, you can swap the Supra box out with a contactors box.
This way, anyone going into the home at that time has to contact you for the code.
Call me any time if you need any other help.
If you're looking for lockboxes, I have found great deals on Supra iBoxes at http://www.LockBoxSwap.com. They have great prices and cover the cost of shipping. Definitely a good resource when I need a lockbox on short notice.
Happy to hear you're doing well getting listings; but it's part of biz. Combo lockboxes are less expensive; but that's about the best you can do.
Take comfort in the fact that the alternative (no listings and plenty lock boxes) is much worse.
I am not sure what kind of lock boxes you use but I use electronic lock boxes and they are expensive. An alternate for cost savings is a combination lock which are 1/3 the cost. i don't really have any short sales out of my 16 listings so I only use electronic lock boxes. They are more secure and I reveive data as the homes are being shown. My suggestion if possible is to try and secure listings that are not short sales (if possible) or buy the combination locks as you need them and put them on the long-term listings only.
Frank Dolski MBA, ABR-e-PRO
Coldwell Banker Hearthside