I have been using the ziploc bags for years , just take a Sharpe marker to write the load data on the bag and your all set , when you want to reuse the bag just rub your finger over the marker and it comes right off to put the new data on .
I use the cheap dollar store bags that are 50 for $.50 , they will last about 4 or 5 uses then throw them away and start over . they also work great for storing brass in as you can keep track of how many times each lot has been loaded .
stimpy