What is proper $ amount to give as a wedding gift

Shopping for a wedding gift (eyeroll, head roll) I found the best way to shop for a wedding present is first to find out if the bride has reqistered her preferences with a retailor. If that's the case that makes it easier. Except if all that's left on the list are expensive, then you have to find a comparable product that is within your budget. That is the main thing - your budget. How much can you really afford. Good luck

Whatever you are comfortable with giving.

How close are you with the people getting married? How established are they? Are the things that have requested essentials or nice to have items? Is what you would be giving them actually helping them out or is it just extra spending cash? How is your financial situation?

These are all questions to ask yourself.

We got between $25 and $50 from most non-immediate family members. We are very well established and don't need anything. It was all fun money that we turned around and spent on our kids.

Approximately twice what you would spend on a birthday gift. If you are not close enough to either of the participants to exchange birthday gifts, a simple checque or gift card can be considered appropriate these days. Steve's answer on the amount of cash is good, not enough to strain your budget but a significant amount nonetheless.

My boss' son is getting married out of state. He sends an invitation. He knows that I will not attend. Should I give a gift ?

In different cultures, gifts are given to an employers child when they marry. I understand it is a "sign of respect" for the employer.
In America, fairly, the only gifts at a wedding are from people the bride and groom are related to,work with or are friends of AND who attend the wedding.
If you attend the wedding, it is considered good manners to bring a gift. If you will not be attending the wedding, do send a return note that you appreciate the invitation but due to (something) you cannot attend and send your best wishes for a happy life. This is considered polite because the couple need to know how many peoiple will attend their wedding.
Good luck

My boss' son is getting married out of state. He sends an invitation. He knows that I will not attend. Should I give a gift ?

If you are personally acquainted with the son, yes. Otherwise, RSVP your regrets at being unable to attend.