Can you still use blue chip stamps?
No. Blue chip stamps are no longer redeemable.
They do. They are called forever stamps because they will still be good for first-class postage even though rates go up . You can buy forever stamps right now for 42 cents and you can still use them without paying any more when postage goes up to 44 cents this May. After May, you will have to pay 44 cents for forever stamps.
If you have a book of stamps purchased prior to the new increase are those stamps still okay to use or do you need to buy 2 cent stamps to go along with the 42 cent stamps?
Well, you could always do potato stamps. A potato is easy to obtain, and very, very easy to carve. If you want to go more durable, you could move up to wood stamps. Harder to carve, but some woods are easier than others.But still rubber stamps are best you can use different rubber stamps like Self Inking Stamps, Pre Inked Stamps, Return Address Stamps, Custom Rubber Stamps.
Yes. But that's more postage than a standard letter is worth. You can add small-denomination stamps to bring the total up to whatever the first class rate is when you use the old stamps. First class stamps in 2006 (Lady Liberty with a US flag backdrop, or two blue lovebirds on a yellow background) were worth 39 cents.
Can I use stamps purchased before the price increases on 6th April and use them after the price increase?
Yes you can. Stamps with fixed values on them (such as 1p, 5p, etc.) will still be worth the same amount after the increase. However, stamps that say 1st, 1st Large, 2nd etc. will automatically increase in value when the price changes - so a 1st stamp now will still be valid for 1st after the change. It's therefore well worth stocking up on these stamps before the price increases, especially as this is probably…