Yes. That would be proper, after all, you are not getting married.
* Your invitations should have included her, but it could be an oversight. Yes, you should send her a wedding invitation even though it's late. If she's good enough to be at your wedding shower and you accept her gift, then she should be good enough to come to the wedding. This lady has class! She came to the wedding shower and was happy for you and wouldn't embarrass you by asking if she could come to the wedding.
Whether you know the bride or not you should bring a gift to her bridal shower. You also have the right to not attend the wedding shower especially if you are not invited to the wedding.
yes
It is proper etiquette to only invite people to the shower who will also be invited to the wedding. If the couple is having a private ceremony with only family, then only invite family to the shower. If they are eloping and not inviting anyone, it would be safest not to have a shower because those at the shower would be expecting a wedding invitation.
On a general basis no, you do not invite out of town guests to a wedding shower if they live a fair ways away because it is just a half day event. They will bring you their wedding gift for you and your husband.
If you are not invited to the bridal shower dose not mean your not wanted at the wedding . So go to the wedding .
Yes it is etiquette to have a bridal shower for a second wedding.
There isn't a set time frame between a bridal shower and the wedding. Normally, it is best to have the bridal shower at least a month prior to the wedding.
It's the thought that counts not the amount.
* If a guest should be from out of town then you could call the person giving the wedding shower and ask them if it would be alright to bring your guest. If your friend has not been formerly invited to the wedding shower then they shouldn't go. If she is a close friend of the brides and you feel a mistake has been made and she has been over looked then you should speak to the hostess by phone regarding your friend.
Yes, the mother should give a gift at one or more wedding showers, but after one larger gift for the first shower then the other gifts can be much cheaper such as nice hand towels for the bathroom; drinking glasses, etc.
yes! of course! they want you there and they want your presents!