i went through recruitment at IU (dropped out of recruitment & ended up transferring though) & i don't want to be a downer but it's such a MISERABLE process. 19 houses is super ridiculous to go to in one weekend, but add to it whatever mother nature decides to throw in there (it was december when i did it..just guess what it was like)
i'd tell you to get recs in ASAP so the houses have your contact information. more than likely they'll invite you over for a meal to get to know you better. also, recs help the girls remember you after 19 party as there are roughly 1600 girls (that's what it was last year i believe) going through. for 19 party you fill out information cards (name, phone #, etc) & on the back list all your activities. i suggest you make your card "stand out" in a way, by decorating it with scrapbook paper, stickers, etc. i put my favorite quote on there as well. stay really positive, smile, & try to make yourself stand out. one thing i remember is i HATED being double rushed. that's when one sorority member talks to two PNMs. i'm super shy, so the conversation often times got dominated by the other PNM. don't let that happen to you, or at least try your hardest to not let it happen.
also, your rho gamma will be a big help as well.
i think if you look up your local panhellenic chapter, they'll get you in contact with people who can write recs for you (if you haven't already). it's extremely competitive so go in with a completely open mind.
anyway, good luck! i hope i didn't scare you too much.
xoxo.