Most of the crops I have attended have a Cricut on site you can use, and a sewing machine, and sometimes a cuttlebug...I always try to plan on what I am going to be working on and take any papers/embellishments/sti ckers, etc. that coordinate with that project, otherwise you end up taking more than you need. Most crops have a store on site, so if you absolutely had to have something that you didn't bring, you can purchase.
Always take your basic tools, adhesive, trimmer, and and a lamp. Again, plan on what you are going to work on specifically, and coordinate your supplies....instead of taking everything. Hope this helps.