I'll start.
1. What is cosplay?Go read here.
http://en.wikipedia.org/wiki/CosplayRegardless, it's just a hobby that involved COStumes and rolePLAY. Do the rest of the math.
2. I want to cosplay, what are the things that I should consider/do before I start?First thing first, money. Cosplay COST money. But then again... most hobbies are not free anyway, unless you had a hobby of collecting free random things. Second, do a lot of research on what you wanted to do/make.
Aside from that, any other of the cosplay etiquettes shouldn't differ much from any normal social etiquettes stuffs.
See also: Beginner's guide
http://www.trsrockin.com/cosplay_howto.html3. Where do I get my cosplay costumes/props/shoes/boots/accessories/etc?There's a lot of ways here. I put in point form.
- Make/Sew yourself - If you're good at sewing/handicraft, feel free to use the skills to make the costumes/props that you want to make.
- Commission a tailor/propmaker to help you sew/make your costume/prop - If you're NOT that good in sewing/propmaking, much less to make clothes/props; then this is the way to go.
- Buy from local costume/anime merchandise stores - if you really desperate, but do not want to go to the hassle of making the things yourself. Pay in mind that the choice will be limited and the size would be questionable. If you're lucky to get the costume that was the right size for you, then good for you.
- Buy from local shopping mall - If it happens that the cloths that you want to get are as normal as our everyday clothes, well... looking around stores around you might just prove to be enough.
- Alter your clothes - Pretty much self-explanatory.
- Order online - There's a lot of places that sells costumes online, I'm sure you can find it without me telling you.
4. Where do I get wigs/color lens/etc?- Local stores - limited
- Online shops
Supporting threads for question 3 and 4.- Cosplay tutorials list
viewtopic.php?f=17&t=177- Cosplay Material Sourcelist
viewtopic.php?f=17&t=48Note on online orders: Do so with the people that you TRUST. And please check if the seller is a credible one before making purchase. The people in the forum can do nothing to help you if anything goes wrong. No amount of complaining in this forum do anyone any good.
Note 2: Please be realistic. If you are making any costumes from scratch, TIME is needed in order to make the things that you wanted made. Plan your time wisely. And if you needed help, be realistic as well and not asking the help when the event that you wanna debut your cosplay is like TOMORROW or the very week you posting the request for help. We are NOT miracle workers. And people here have no obligation to help you make your own project.