I'm having a large bridal party and have some ideas floating around in terms of bridal party presents. My wedding isn't for another year but I was thinking about e-mailing a questionnaire/survey so I have a record of ideas for BM presents. I know I should "know" these things as they are my best friends but things change (favorite color, shoe size, full initials (I'm not sure technically what some married friends go by), shirt size, gold vs. silver etc.). I have a good idea of what I want to give at this point but was thinking the more information the better? I would love to have all this information come the time to buy gifts and not have to guess as I do want to personalize. Would anyone bet offended to be asked such information as a BM if the bride should know? Thanks

Re: Wedding Party "Questionnaire"
It's not an offensive idea, but it's not really a nice one. Gifts should be from the heart. Asking a whole group generic questions about shoe sizes is weird if you end up getting one of them a plant (or what ever).
Sending out a mass survey kinda comes across like you can't be bothered to just call the person and ask, "What's your shoe size?"
I know you have a lot of questions to ask each girl, but even sending emails out individually would be better than a mass survey e-mail. You can personalize the e-mails, too, tailoring them to each person.
So, if you already know Jane's shoe size, you can leave that question out, but ask her what her shirt size is.
And you might know Sally's shoe size and shirt size because you raid each other's closets, so it might come across super weird to her if you asked her those questions.. But if you asked her, "Sally, I forgot, do you prefer green or blue?" it makes more sense. Basically, you don't have to bombard anyone with a buttload of random questions that you might decide you don't even need to know the answers to.
I would find this bizarre and impersonal. And just to clarify...flip flops because you're having a tented reception is NOT a bridal party gift. Nor is jewelry they wear that day, just in case that was what you were thinking of doing. You're better off just shopping as if it's each of their birthdays and you should know what each would like, given that they're your closest friends. Also, skip the monogrammed crap too.
Why do you have to get them flip flops? I told my BP to bring any shoes they'd like to change into for the reception. Some had sandals, some had dress flats, and one girl wore Toms. They wore what they are comfortable in. Flip flops are generally not comfortable, and I personally wouldn't dare wear them with a formal dress.
Also, please skip "bridesmaid" t-shirts and/or robes if that is what you're asking them their shirt size for.
And giving something that you expect your bridesmaids to wear at your wedding is not giving them gifts. Buy for them as though the occasion is not for your wedding.