Question: So far I've been using a printed copy of the official character sheet for my D&D characters.

It features a blank space for every stat. As a consequence of that, every time my character levels up I have to erase whatever number I wrote and write new ones. After a few levels, this wear and tear adds up and the character sheet becomes barely usable.

Sure, I could print a fresh character sheet every level and fill it up with the new stats. But, as you may have experienced, during a campaign the sheet gets covered with all kind of notes, and copying those all can be pretty boring and prone to error.

I'm about to start a new campaign, and I was searching for a custom printed character sheet that's easy to update. Possibly one with little dots or squares to represent the numbers, so that when I need to add 2 points to an ability, I can just mark two more dots. For that reason, it may take more pages than the standard sheet, that's fine.

I'd like a ready made solution, preferably a PDF that I can print.

Answer: 
As for PDF-based character sheets, [Dyslexic Studeos’](http://charactersheets.minotaur.cc/) are by-far the highest-quality that I have seen. But I don’t think you’re likely to find a non-digital sheet that can be updated without an eraser.

A digital sheet, on the other hand, can have anything edited with ease, and most automatically update dependent variables based on any changes you make (increase your Dexterity, and all the Dex-based skills go up automatically).

Personally, I tend to prefer [The Tangled Web](http://thetangledweb.net/)’s 3.5 character sheets over MythWeavers’. They’re almost identical to MW’s non-alpha sheets, but small differences (like the checkboxes for extra weapons/armor you may or may not need, and using the checkbox for “class skills” rather than “cross-class skills”) make a difference for me. I have not tried MW’s new alpha 3.5 sheets, as at this point I use my own custom sheets – but those aren’t anything *like* easy-to-update (unless, like me, you are deeply familiar with the source code and what edits need to be made where...).
Use a laminated sheet and Mark it with a permanent marker. They won't accidently erase. In order to erase your old marks, write over them with a dry erase marker, then simply wipe clean.