I'd not call it professional but for my three main obsessions, er, collections (shilling date run 1663-1970, Irish coins 1928-2000 & French 3rd through 5th Republics) I have a four ring binder and bunches of coin safe plastic sheets that hold anywhere from 42 (shilling sized) to 30 (half crown sized) or 12 (1870's 5 franc sized) and that suits me nicely. It's easy to show them to friends and easy to take it along when I go to coin shops or shows.
Easy to find on Amazon, couldn't tell you elsewhere. Hope this is of some use.