A method of making bottom-gusseted packages, comprising the steps of: providing a flexible web of material having a longitudinal axis, providing a flexible, sleeve-forming web; cutting said flexible, sleeve-forming web into a plurality of individual sleeves; joining said individual sleeves to said flexible web in spaced apart relationship longitudinally of said flexible web, with the spacing between said individual sleeves corresponding to the length of each of said bottom-gusseted packages being formed; folding said flexible web of material and joining the lateral margins thereof to form a folded flexible web, and to thereby form a package body for each of said bottom-gusseted packages, each package body including a front package panel and a rear package panel joined at opposite side margins thereof, said individual sleeves being positioned generally within said folded flexible web; and cutting said folded flexible web at intervals each corresponding in length to said length of each of said bottom-gusseted packages so each individual sleeve provides a bottom gusset for one of the packages being formed, said method including formation of bottom gusset side seals between the front and rear package panels (114, 116) of each said package at opposite side edges of the bottom gusset of the package, each of said bottom gusset side seals overlapping a respective end of said bottom gusset, wherein each of said individual sleeves has a length which is less than the width of the folded web of flexible material to facilitate formation of said bottom gusset with a width less than the width of the package, and confining a top sleeve portion generally within a side end seal formed by top sleeve portion side seals, and an end seal characterized in that the end seal joins the front and rear package panels below the end of sleeve material that is in a top seal joining a pair of legs or flanges of the top sleeve portion to the front and rear package panels (114, 116) along the top of the package, and said cutting step includes cutting through each of said individual sleeves so that a portion of each individual sleeve provides: said bottom gusset for one of the packages being formed, and a top sleeve portion for an adjacent one of said packages being formed. providing a flexible web of material having a longitudinal axis, providing a flexible, sleeve-forming web; cutting said flexible, sleeve-forming web into a plurality of individual sleeves; joining said individual sleeves to said flexible web in spaced apart relationship longitudinally of said flexible web, with the spacing between said individual sleeves corresponding to the length of each of said bottom-gusseted packages being formed; folding said flexible web of material and joining the lateral margins thereof to form a folded flexible web, and to thereby form a package body for each of said bottom-gusseted packages, each package body including a front package panel and a rear package panel joined at opposite side margins thereof, said individual sleeves being positioned generally within said folded flexible web; and cutting said folded flexible web at intervals each corresponding in length to said length of each of said bottom-gusseted packages so each individual sleeve provides a bottom gusset for one of the packages being formed, said method including formation of bottom gusset side seals between the front and rear package panels (114, 116) of each said package at opposite side edges of the bottom gusset of the package, each of said bottom gusset side seals overlapping a respective end of said bottom gusset, wherein each of said individual sleeves has a length which is less than the width of the folded web of flexible material to facilitate formation of said bottom gusset with a width less than the width of the package, and confining a top sleeve portion generally within a side end seal formed by top sleeve portion side seals, and an end seal characterized in that the end seal joins the front and rear package panels below the end of sleeve material that is in a top seal joining a pair of legs or flanges of the top sleeve portion to the front and rear package panels (114, 116) along the top of the package, and said cutting step includes cutting through each of said individual sleeves so that a portion of each individual sleeve provides: said bottom gusset for one of the packages being formed, and a top sleeve portion for an adjacent one of said packages being formed.