I'm a newbie, so still stocking up....
Bought a Denman paddle brush and a Jilbere shower comb. Also two products I've used with much success before I start my HJ -- Keracare's shampoo and conditioner for dry and itchy scalp.
I'm dying to try the HE LTR leave in and the NTM leave in, but I haven't had much success finding them. I saw them in Target, but I didn't get them because I thought my Walmart would have them. No luck there.