Buy an air filter to remove dust from the air, create a clean working space, use a non-abrasive foam mat to lay your cards on, use rubber gloves, and have a quick storage plan in case something comes up or you need to take a break
Reference Cards and Print Consistency Some collectors keep a small set of reference cards from each expansion they collect
There are some genuinely excellent full art reprint cards on MTG Spider-Man's Source Material bonus sheet
You can pay a black mana and sacrifice a creature, then destroy any target nonblack creature
Hit Kings gives you 1 premium card valued at $50$500, focused on big names and real upside
They have a subtle prismatic effect while keeping the main focus of the card intact and clear up in the foreground, giving it excellent contrast and even better eye candy