do yourself a favor and get a grunt and a bleat can. But you have to learn when to use them and when not to. First, don't call to a deer that is coming to you anyways, that will almost always work against you. A deer call will not send a deer running away but it will give up your position (scent control,scent contro, scent control). 2nd, let the deer dictate how much you call. Thier body language will tell you everything. I have had more deer respond in a positve way than a negative way.
Get yourself a good pack. I like packs with a deep center and lots of pockets. All extra clothing goes in the deep center to keep sweating at a minimum (scent control) and enough pockets so everything has a place and keeps it organized.