I happen to like Camellia Oil for planes - since I got some “free” samples from Craftsman Studio when I bought a plane or two from them. They now sell it for $25
http://www.craftsmanstudio.com/searchresults.asp?Submit=Go&Search=oil
but you can but it elsewhere too:
https://www.amazon.com/8-2-Tsubaki-Camellia-Knife-Care/dp/B001TPFVHC/ref=sr_1_16?ie=UTF8&qid=1477743206&sr=8-16&keywords=camellia+oil
As far as sharpening and honing goes - it is worth learning this skill. There are all sorts of tools and techniques - machines and hand methods - but the idea is to learn one and stick to it. Once mastered you can sharpen not only plane irons (aka blades) - but chisels. gouges, knives, garden tools etc. I, like RKA, like my Japanese water-stones and a strop/jeweler’s rouge for finishing. But buying a set (different “grits”) of high quality ones, setting then up with a holder and a stone pond may be more expensive than you want. A set of Norton waterstones (starter kit) is a possibility:
https://www.amazon.com/Norton-Waterstone-Starter-Kit-flattening/dp/B000XK0FMU/ref=sr_1_1?ie=UTF8&qid=1477743953&sr=8-1&keywords=norton+waterstone
As you sharpen with them - they wear and need to be flattened from time to time.
There are lots of other stone choices - waterstones up to 12000 grit, oil stones (cut slower - and sort of old-school now) , diamond impregnated plates etc.
https://www.amazon.com/DMT-W6EFC-6-Inch-Diamond-Whetstone/dp/B003NCVFC4/ref=sr_1_7?s=power-hand-tools&ie=UTF8&qid=1477744274&sr=1-7&keywords=diamond+sharpening+stone
And Shapton “glass stones”
http://www.japanwoodworker.com/search2/search.aspx?query=sharpening%20stone
and then there are specialty “stones” - like diamond crowning plates and diamond lapping plates.
http://www.highlandwoodworking.com/browseproducts/Odate-9mic-Crowning-Plate-~-1200x.HTML
The other - less expensive approach is to use sandpaper on a piece of flat (float) glass or better yet a granite tile. You’ll need to buy some fine grits at Home Depot and then some really fine grits at an automotive store. A can of 3M spray adhesive to adhere the paper to the granite - and you have your surface to first flatten (if needed) the sole of the plane, back of the plane iron, back of the chisel etc.- then to sharpen the bevel (and/or secondary micro-bevel) on the plane iron.
Some skilled craftsman say they can do all of this by eye - but other mere mortals - like RKA suggests - use a jig to help hold a consistent angle.
Lie Nielsen and Veritas - again come to the rescue:
http://www.leevalley.com/US/wood/page.aspx?p=33001&cat=1,43072,43078
http://www.leevalley.com/US/wood/page.aspx?p=51868&cat=1,43072,43078,51868
but there are other lesser and cheaper ones too:
https://www.amazon.com/Self-Centering-Clamping-Sharpening-Chisels-HG/dp/B01DR6I1Q8/ref=sr_1_2?ie=UTF8&qid=1477744644&sr=8-2&keywords=plane+blade+sharpening+jig