Update 2019: video links and PDF links fixed, and new 2019 video added. Please let me know via comment if the links break again.
I don't have a lot of experience with cracks myself (I refuse to make my feet hurt, and so far I haven't found a way around that), but I found these Wide Boyz videos quite helpful in getting the basic jams correct.
Each video (...
After looking around the internet, it seems that oils can be used to remove tape residue. So things like,
would be possibilities for removing the gunk and shouldn't hurt if it gets into cuts. They should also be good for your hands, especially if they are dry.
Gojo Pumice Hand Cleaner.
If you've worked with grease, grime, or in a coal mine then you know what pumice hand cleaner is, it has silica sand in it to help scour away the gunk. You use it without water on your dry hands, then after you've loosened all the gunk you wash off the cleaner with soap and water.
I have used this stuff with open cuts on my hands, ...
A quick search turned up these possibilities:
Jaybird & Mais Sports Medicine Adhesive Tape (non-stretch)
Many of the products say: Hypo-allergenic and 100% Latex Free
This is not specifically described as climbing tape but the first product, EX1 JAYBIRD® ONE TAPE, says: "Our strongest everyday strapping tape product. EX1 is manufactured using a higher ...
To start with,
Handjams (thumbs up, thumbs down, cupped hand)
Hand & Fist stack
whole body (chimney):
frog (feet against back wall, knees aginst front wall)
sitting (back against back wall, feet against front wall)
stemming (left foot/hand against one wall, right foot/hand against other)
Any detergent-based soap will work best to remove things like oils and adhesives. Gojo and similar brands are a reasonable choice, and the added pumice lets you scrub a bit harder. Something like Dawn dish soap will also work, but require a bit more scrubbing. Ultimately you're down to 1) The adhesives drying out and falling off 2) mechanical removal (...
I think the key is to avoid the gunk in the first place, or more accurately the second place. I like the these tape gloves and the advice at the end. That advice is you can shave the back of your hands. The tape gunk comes off bare skin much easier than when it is matted into the hair on your hands.
The second, and more important advice, is to reuse your ...