I've been keeping my slides/negs in a very large zip-lock bag (Space bag from TV innovations). Inside the zip-lock bag I stuff a sock with some silica gels. I change the slilica gels not on a regular basis, but often enough.
It's been a year and no harm has been done.; or not that I can perceive. Should I get a dry box instead? The humidity level is unpredictable in the zip-lock bag, that is why I thought it might be a good idea to get a dry box.
Is the running cost of a 50L dry box high? I went around a few stores to look at the back of the dry boxes to spot the wattage so as to compute the cost, but so far, none of them displays it.
Your comments are appreciated.