This guide for aftercare is based on personal experience. One should realise that what works for you, may not work for your neighbour. Best advice is always: don't do anything with a fresh tattoo you wouldn't do with a fresh wound; respond accordingly to how your skin reacts, and ask advice from your tattoo artist when in doubt.
Cellophane Foil/ kitchen foil:
A lot of different opinions on this are going between artists. I just recommend to use it the first day and possibly the second day if the tattooed area was a very tender... Or for example, if your job takes place in a dusty environment, best to use foil the second day as protection!
Cleaning (first week):
Clean your new tattoo at least twice a day (preferably at morning, noon and before bed). Rinse with clear water, dap dry and reapply cream.
Use cream (2weeks):
Bepanthene, aquapore, tattoo balm or hustle butter are fine to treat your tattoo with during healing.
Never apply too much so as your skin to be still able to breathe. Too much greasiness will also cause skin irritation.
Make sure there is just enough applied cream for your skin to be a tad oily. It's important your skin doesn't dry out as this causes scabs to form.
However tempting it may seem, never scratch a fresh tattoo or pull the scabs (if any). This may cause scars or empty spots (as you pulled the ink out).
No swimming (a month or two):
No bathing, saunas or any other situations that can get your skin soaked. Soaking the skin will make your ink fade.
No sun (a month or two):
No long exposure to the sun, since UV rays cause the ink in the skin to run out. It also causes shades to fade quicker.