I simply copy and paste this tip (or cheat) from one site. Perhaps this one is old story but I think lots of mafia don't know about this yet..
Mafia Wars limits how often you can send gifts to your friends. There is a simple method for getting around this limitation so that you can send more than 1 gift to your friend(s).
1. Go to Facebook and then access the Mafia Wars applicaton.
2. If you haven’t sent a gift recently, you should arrive at the page for choosing a free gift to send to your friends. Or if you can't find the page, go here : Free Gift page.This is one example of Free Gift page :
3. Right-click on one of the free gifts and select Open Link in New Tab. Repeat this several times.
4. Go to each tab and select the GIFT that you want to send (they can be different or all the same). Do not press the Proceed to Send button yet!
5. After you have selected a gift on each tab, go back to the first tab and click the Proceed to Send. Repeat this for each tab.
6. Go to each tab and select the FRIEND(S) to send the gift(s). Do not click the Send Mafia Wars Gift Request button yet.
7. After you have selected the intended recipients for each tab, go back to the first tab and click the Send Mafia Wars Gift Request button. Repeat this step for each tab.
8. Go back to the first tab, you will see the Mafia Wars Gift request that you have created. Click the Send button. Repeat this step for each tab.
You can now close your browser. The gift request will all be sent and your friends will be well armed and quite pleased