The basics for me would be whatever color die you are using, saddle soap, contact cement and resolene. I prefer the Fieblings Pro dies, I tired and Eco Flo all in one die and finish that was given to me and was not impressed. My preference for contact cement is, Renia Aquilim 315 Cement, it is odorless and works just as well as the wildwood or barges in my opinion. Finish wise I have had good luck with both Resolene and Mop and Glo both cut 50:50 with water I use a sponge paint brush and put on light coats. I use the Fieblings saddle soap that comes in the tin that looks like oversized shoe polish, I rub it on the edges after sanding with 100, 220 and 400 grit sandpaper.
Todd