My shower invites were just sent out last week and I already received one gift from someone unable to attend, which was given to my FMIL for her to give to me. She was going to bring it to the shower, but instead handed it to me to take home, since I am having a shower with 90+ women invited and I'm a slow gift opener. She seemed like she thought I should wait until the shower day to open the gift, but I was hoping to open it now since I can get the Thank you note done ahead of time, instead of grouping it with the other shower thank you notes.
Would it be inappropriate to open the gift now and write the thank you note? I can send the thank you with the rest of the thank you notes, right?
Or should I not open it until the shower?
ETA: My shower is July 29th