Jeff, as a cheap effective option I recommend getting a reverse-ring adapter with a screw in diameter that fits the front of your lens. You will have outstanding magnification but bear in mind that DOF is very shallow. Tricky but workable.
Nikon makes one, and it won't cost an arm and a leg either. I paid about $60 CDN for mine. Herman's last two sentences are very true. I really had a hard time getting used to it, but that may because I was using my old 50mm D series 1.8.
Other alternatives are pricier. Extension tubes are another way to go. However, I have no current information on how they work; or how they are priced. Sigma makes a 70-300 macro lens, but the macro only functions between 200 mm and 300 mm. That wasn't working for me either. Fortunately, I bought it used, from a reputable camera dealer, at a good price. To this day, it makes a nice general purpose lens.
The Sigma 105/2.8 is now my favourite macro lens. I really like this lens. It's great for macro; and I also like the focal length when I'm shooting still life/product. It's pricier than the alternatives above, but was roughly one-half the cost of Nikon's macro lens at the time I bought it.
Your choice is a matter of preference. However, if you are just starting to explore this, the reverse-ring adaptor or the extension tubes might be an affordable way to get your feet wet.
Thats because they knew what would happen and force people to pay the 50$. I love it but when it breaks due to updates to Mac OS Ill just move one. My friend had paid full price twice actually once when he bought it when it was Nik, then he switched to Mac and of coarse that was after Google bought Nik so he ponied up the money again only to have DXO wipe him out again to say that least he was done.
I love Nik, but my work flow has changed in recent months. LR CC is becoming so feature rich that I'm not using Nik as much as I used to. It's still functioning (as of last week), but I use Color Efex much less than I used to. I still love Silver Efex for B & W.
Unfortunately, for Nik and DxO, even Adobe-haters have lots of alternatives, with reputable companies who respect their customers. When my iMac version of Nik finally crashes, my business will go to one of those companies.