One party is the norm here. Backyard or the front using the garage for shade and laying food out and using plug ins for crock pots, etc.
My only child graduates in 3 weeks and I have been planning hers for months. I just pray and hope for a nice day, not too hot and no rain!
We are having a walking taco bar, fruit kabobs, bars and cookies and CAKE! My daughter loved the idea of a Root Beer Keg, so we will do that along with bottled water.
Her school does not have school colors (it's a small, but public, Arts High School, so no sports teams, etc) so we are doing everything her favorite colors of lime green, dark purple and lavender purple. I have been buying cups and plates and balloons and napkins and the rest for months with coupons and sales! I have plans set in place to borrow tables and tents, but we rented chairs ( and will share the rental with a friend who lives a half mile away and is having her sins party the next day!)
I say find a location if your home is not ideal, and go from there. Get a cake ordered and start the rest!
Have a great grad party!