So I was running through Home Depot for 'Black Friday' today and decided $20 for a Ridgid shop-vac was too good to pass up even though I already have 3 in the shop. Started looking for the bags for the unit and couldn't find the correct one. Decided to ask someone where they were and he said I shouldn't use a bag if I plan on using the filter and vice-verse. Explained that it was basically double filtering and wears out the motor faster and limits suction. I use bags AND filters on all my shop vacs but his advise made sense. If I plan on using a bag should I forgo the filter? Thanks!