Card Protection Will double sleeving cards like this (penny sleeve, then card sleeve, then top loader) have a negative effect on my card collection? Please help, the cards fit a bit What is the consensus on penny sleeve top loader brands to use if you are storing for your own collection and or eventual grading? I had gotten ultra pro but sounds like folks don't Ultra Pro 3 x 4 Inch Toploaders & Sleeves (100) 3" x 4" Super Thick 130PT TOPLOADER Sleeves & Thick Card Sleeves Comb Ultra PRO International 35PT Top Loader Clear PVC Protective Trading Card Sleeves Holder for Baseball Sports Cards from Dhgate Binders price 3.74 Top Loaders for Cards & Penny Sleeves Bundle 100 Toploaders & 100 Pe The House of Hobby