In using a guitar amp, it's important to know how to manipulate the amplifier to achieve a number of different effects, including a clean or dirty sound. Learn about using the bass and treble knobs on an amp with help from a professional guitarist in this free video on guitar amps.
A 10 X 13 envelope (must be less than 1/4 inch thick) is considered a flat and costs 80 cents for the first ounce and 17 cents for each fractional ounce after that up to 13 ounces.
International mail/postcard - $1.15. Domestic Priority Express Mail Flat Rate Envelopes - $22.95. Please Note: Letter rates are just for normal business envelopes (size 6 and 10), which are no larger than 6-1/8 in height and 11.5 in length. Standard manilla envelopes are considered large envelopes.