Blankets John??, are you sleeping on the job?. grin
(I know what you mean).
At work we are required to hand in all of our gloves, outers, blankets and clips for Live work every 6 months, for Inspection by the testing crew at work, hence we have 2 sets of this gear.
Testing this gear can get expensive, if you use this sort of gear, it should be charged to the customer in a part charge in maintaining the equipment.
No doubt someone will pop up here and say that it is unfair that they should carry the cost of us maintaining our gear.
Think of it as insurance against a chink in your armour with OSHA, an accident on your site could cost a lot more.