*sniffle* So sorry, Chewie...it's never easy to lose a beloved kitty.
My cat mailing list friends always wish the departed kitty a good journey to the Rainbow Bridge. It's our way of saying goodbye and I wish your Twila a good journey.
Maybe you can find some solace
here- one of the several versions of the poem is there and it's just one of many places on the net where people who love their pets and grieve their loss can find others who understand.
I've said goodbye to several kitties over the years and each one was as hard as the last to see go...but I did what you plan to do. I waited a bit then adopted another who needed a home, in honor of the promise made to my first- to always provide a good home for a needy cat- my way of thanking my first for showing me how wonderful sharing your time with a cat can be.