No need to horde them, hides especially are very heavy. If you’re having weight issues in the Witcher 3 a few quick tips that might help:
For some, weight limits can be a concern as the game has no central storage or bag expansions (besides the single horse saddle), and no filter inventory by weight option. The Over 9000 mod allows you to change Geralt’s weight limit to a custom value of up to 9999. Being such a popular game one could expect mods as early as we see now, what is surprising is the variety in these mods that one can see. From changing values and numbers of gold, weight and stamina to mods that visually overhaul the graphics, adding effects, skin packs and horse armour. We compile a list of the best Witcher 3 mods that we deemed fit. And the mod-creation tool Redkit has still not been officially released by CD Projekt Red. The Witcher 3 may not be even be 10 days old, but already many useful mods have started appearing on the Nexus website.